build(deps): bump github.com/stretchr/testify from 1.4.0 to 1.7.0 (#43)

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.4.0 to 1.7.0.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](https://github.com/stretchr/testify/compare/v1.4.0...v1.7.0)

---
updated-dependencies:
- dependency-name: github.com/stretchr/testify
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/pires/go-proxyproto v0.6.1
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.4.1
-	github.com/stretchr/testify v1.4.0
+	github.com/stretchr/testify v1.7.0
 	golang.org/x/text v0.3.2
 	k8s.io/api v0.18.5
 	k8s.io/apimachinery v0.18.5
@@ -46,6 +46,7 @@ require (
 	google.golang.org/appengine v1.5.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.2.8 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 	k8s.io/klog v1.0.0 // indirect
 	k8s.io/utils v0.0.0-20200324210504-a9aa75ae1b89 // indirect
 	sigs.k8s.io/structured-merge-diff/v3 v3.0.0 // indirect