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

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-preview[bot] <support@dependabot.com>

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/fatih/color v1.10.0
 	github.com/imdario/mergo v0.3.11
 	github.com/mattn/go-colorable v0.1.8
-	github.com/stretchr/testify v1.6.1
+	github.com/stretchr/testify v1.7.0
 	github.com/tsuyoshiwada/go-gitcmd v0.0.0-20180205145712-5f1f5f9475df
 	github.com/urfave/cli v1.22.5
 	gopkg.in/AlecAivazis/survey.v1 v1.8.8

go.sum

@@ -35,6 +35,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tsuyoshiwada/go-gitcmd v0.0.0-20180205145712-5f1f5f9475df h1:Y2l28Jr3vOEeYtxfVbMtVfOdAwuUqWaP9fvNKiBVeXY=
 github.com/tsuyoshiwada/go-gitcmd v0.0.0-20180205145712-5f1f5f9475df/go.mod h1:pnyouUty/nBr/zm3GYwTIt+qFTLWbdjeLjZmJdzJOu8=
 github.com/urfave/cli v1.22.5 h1:lNq9sAHXK2qfdI8W+GRItjCEkI+2oR4d+MEHy1CKXoU=