build(deps): bump github.com/stretchr/testify from 1.6.1 to 1.7.0 (#1654)

Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](stretchr/testify@v1.6.1...v1.7.0)

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Xiang Dai <long0dai@foxmail.com>
Co-authored-by: Xiang Dai <long0dai@foxmail.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -58,7 +58,7 @@ require (
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.7.1
 	github.com/ssgreg/nlreturn/v2 v2.1.0
-	github.com/stretchr/testify v1.6.1
+	github.com/stretchr/testify v1.7.0
 	github.com/tdakkota/asciicheck v0.0.0-20200416190851-d7f85be797a2
 	github.com/tetafro/godot v1.3.2
 	github.com/timakin/bodyclose v0.0.0-20190930140734-f7f2e9bca95e