Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.6.1 to 2.7.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v2.6.1...v2.7.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 1.4.1 to 1.5.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1.4.1...v1.5.0)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.5.0 to 2.6.1.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v2.5.0...v2.6.1)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 1.4.0 to 1.4.1.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1.4.0...v1.4.1)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [docker/login-action](https://github.com/docker/login-action) from 1.9.0 to 1.10.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1.9.0...v1.10.0)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.4.0 to 2.5.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v2.4.0...v2.5.0)

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Bumps [docker/login-action](https://github.com/docker/login-action) from 1 to 1.9.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1...v1.9.0)

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Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 2.3.4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v2.3.4)

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Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2 to 2.4.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v2...v2.4.0)

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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from v1.2.0 to v1.3.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1.2.0...0d135e0c2fc0dba0729c1a47ecfcf5a3c7f8579e)

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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from v1.1.2 to v1.2.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1.1.2...012185ccbeb554a7f5f987bea0f1a73519b3cdf5)

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Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from v1 to v1.1.2.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v1...2a4b53665e15ce7d7049afb11ff1f70ff1610609)

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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.