Fixes https://github.com/tendermint/tendermint/runs/1925329781

```
OCI runtime exec failed: exec failed: container_linux.go:370: starting
container process caused: exec: "lein run test --nemesis none --workload
cas-register --concurrency 10 --tendermint-url
https://github.com/melekes/katas/releases/download/0.2.0/tendermint.tar.gz
--merkleeyes-url
https://github.com/melekes/katas/releases/download/0.2.0/merkleeyes_0.1.7.tar.gz":
stat lein run test --nemesis none --workload cas-register --concurrency
10 --tendermint-url
https://github.com/melekes/katas/releases/download/0.2.0/tendermint.tar.gz
--merkleeyes-url
https://github.com/melekes/katas/releases/download/0.2.0/merkleeyes_0.1.7.tar.gz:
no such file or directory: unknown
```

fixes https://github.com/tendermint/tendermint/runs/1924860805

```
Run docker exec -it jepsen-control 'cd tendermint && lein run test
--nemesis  --workload ' the input device is not a TTY
```

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from v2.3.0 to v2.4.0.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](https://github.com/golangci/golangci-lint-action/compare/v2.3.0...544d2efb307b3f205f34886f2787046abe7fb26e)

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Bumps [JamesIves/github-pages-deploy-action](https://github.com/JamesIves/github-pages-deploy-action) from 3.7.1 to 4.0.0.
- [Release notes](https://github.com/JamesIves/github-pages-deploy-action/releases)
- [Commits](https://github.com/JamesIves/github-pages-deploy-action/compare/3.7.1...049a95c516cd5723d8cfde79dc7a79fcdcbd6c97)

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https://stackoverflow.com/a/66073112/820520

Bumps [actions/cache](https://github.com/actions/cache) from v2.1.3 to v2.1.4.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.3...26968a09c0ea4f3e233fdddbafd1166051a095f6)

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I got tired of seeing the literal phrase "Closes #XXX" left in PR bodies. 

Also, this template isn't usually viewed as rendered markdown, so I've removed the markdown formatting and the "Description" heading (which usually gets deleted anyways).

Co-authored-by: Erik Grinaker <erik@interchain.berlin>
Co-authored-by: Marko <marbar3778@yahoo.com>

This reverts commit 64961e2267, to see if it will make the workflow dispatch trigger reappear and fix our Slack notification link.

and preserve exit code.

```
2021/01/26 03:34:49 workers: 2, corpus: 4 (8m28s ago), crashers: 0, restarts: 1/9976, execs: 11013732 (21596/sec), cover: 121, uptime: 8m30s
make: *** [fuzz-mempool] Terminated
Makefile:5: recipe for target 'fuzz-mempool' failed
Error: Process completed with exit code 124.
```

https://github.com/tendermint/tendermint/runs/1766661614

`continue-on-error` should make GH ignore any error codes.

outputs is a property of the job, not an individual step.

Co-authored-by: Marko <marbar3778@yahoo.com>

Co-authored-by: Emmanuel T Odeke <emmanuel@orijtech.com>

Closes #5907

- add init-corpus to blockchain reactor
- remove validator-set FromBytes test
now that we have proto, we don't need to test it! bye amino
- simplify mempool test
do we want to test remote ABCI app?
- do not recreate mux on every crash in jsonrpc test
- update p2p pex reactor test
- remove p2p/listener test
the API has changed + I did not understand what it's tested anyway
- update secretconnection test
- add readme and makefile
- list inputs in readme
- add nightly workflow
- remove blockchain fuzz test
EncodeMsg / DecodeMsg no longer exist

* .github/codeowners: add alexanderbez

* Update .github/CODEOWNERS

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Co-authored-by: Marko <marbar3778@yahoo.com>

Bumps [gaurav-nelson/github-action-markdown-link-check](https://github.com/gaurav-nelson/github-action-markdown-link-check) from 1.0.11 to 1.0.12.
- [Release notes](https://github.com/gaurav-nelson/github-action-markdown-link-check/releases)
- [Commits](https://github.com/gaurav-nelson/github-action-markdown-link-check/compare/1.0.11...0fe4911067fa322422f325b002d2038ba5602170)

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Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from v1.2.0 to v1.2.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v1.2.0...e156083f13aff6830c92fc5faa23505779fbf649)

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Co-authored-by: Marko <marbar3778@yahoo.com>

# Description

- run build when on a branch matching RC[0-9]/**, in accordance with contributing.md release guide.

Closes: #5695

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from v1.0.15 to v1.1.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v1.0.15...1fc7722ded4708880a5aea49f2bfafb9336f0c8d)

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Bumps [gaurav-nelson/github-action-markdown-link-check](https://github.com/gaurav-nelson/github-action-markdown-link-check) from 1.0.10 to 1.0.11.
- [Release notes](https://github.com/gaurav-nelson/github-action-markdown-link-check/releases)
- [Commits](https://github.com/gaurav-nelson/github-action-markdown-link-check/compare/1.0.10...2a60e0fe41b5361f446ccace6621a1a2a5c324cf)

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Bumps [gaurav-nelson/github-action-markdown-link-check](https://github.com/gaurav-nelson/github-action-markdown-link-check) from 1.0.9 to 1.0.10.
- [Release notes](https://github.com/gaurav-nelson/github-action-markdown-link-check/releases)
- [Commits](https://github.com/gaurav-nelson/github-action-markdown-link-check/compare/1.0.9...72d871b8c64d67e2161dc16596734334b188429d)

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Bumps [gaurav-nelson/github-action-markdown-link-check](https://github.com/gaurav-nelson/github-action-markdown-link-check) from 1.0.8 to 1.0.9.
- [Release notes](https://github.com/gaurav-nelson/github-action-markdown-link-check/releases)
- [Commits](https://github.com/gaurav-nelson/github-action-markdown-link-check/compare/1.0.8...7481451f70251762f149d69596e3e276ebf2b236)

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Bumps [rtCamp/action-slack-notify](https://github.com/rtCamp/action-slack-notify) from ecc1353ce3 to 2.1.2. This release includes the previously tagged commit.
- [Release notes](https://github.com/rtCamp/action-slack-notify/releases)
- [Commits](ecc1353ce3...ae4223259071871559b6e9d08b24a63d71b3f0c0)

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Replace defer with t.Cleanup().

Replace the combination of ioutil.TempDir, error checking
and defer os.RemoveAll() with Go testing.T's new TempDir()
helper.

Mark auxiliary functions as test helpers.

* remove circle

* remove prefix

## Description

_Please add a description of the changes that this PR introduces and the files that
are the most critical to review._ 

Closes: #XXX

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from v1.0.14 to v1.0.15.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Commits](https://github.com/codecov/codecov-action/compare/v1.0.14...239febf655bba88b16ff5dea1d3135ea8663a1f9)

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Bumps [rtCamp/action-slack-notify](https://github.com/rtCamp/action-slack-notify) from e9db0ef to 2.1.1. This release includes the previously tagged commit.
- [Release notes](https://github.com/rtCamp/action-slack-notify/releases)
- [Commits](https://github.com/rtCamp/action-slack-notify/compare/e9db0ef...ecc1353ce30ef086ce3fc3d1ea9ac2e32e150402)

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Bumps [actions/cache](https://github.com/actions/cache) from v2.1.2 to v2.1.3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.2...0781355a23dac32fd3bac414512f4b903437991a)

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