deps: bump github.com/rs/cors from 1.6.0 to 1.7.0 (#3939)

Bumps [github.com/rs/cors](https://github.com/rs/cors) from 1.6.0 to 1.7.0.
- [Release notes](https://github.com/rs/cors/releases)
- [Commits](https://github.com/rs/cors/compare/v1.6.0...v1.7.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -29,7 +29,7 @@ require (
 	github.com/prometheus/common v0.0.0-20181020173914-7e9e6cabbd39 // indirect
 	github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20180503174638-e2704e165165
-	github.com/rs/cors v1.6.0
+	github.com/rs/cors v1.7.0
 	github.com/snikch/goodman v0.0.0-20171125024755-10e37e294daa
 	github.com/spf13/afero v1.1.2 // indirect
 	github.com/spf13/cast v1.3.0 // indirect

go.sum

@@ -99,6 +99,8 @@ github.com/rcrowley/go-metrics v0.0.0-20180503174638-e2704e165165 h1:nkcn14uNmFE
 github.com/rcrowley/go-metrics v0.0.0-20180503174638-e2704e165165/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rs/cors v1.6.0 h1:G9tHG9lebljV9mfp9SNPDL36nCDxmo3zTlAf1YgvzmI=
 github.com/rs/cors v1.6.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
+github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
+github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/snikch/goodman v0.0.0-20171125024755-10e37e294daa h1:YJfZp12Z3AFhSBeXOlv4BO55RMwPn2NoQeDsrdWnBtY=
 github.com/snikch/goodman v0.0.0-20171125024755-10e37e294daa/go.mod h1:oJyF+mSPHbB5mVY2iO9KV3pTt/QbIkGaO8gQ2WrDbP4=
 github.com/spf13/afero v1.1.2 h1:m8/z1t7/fwjysjQRYbP0RD+bUIF/8tJwPdEZsI83ACI=