Merge pull request #381 from carvel-dev/dependabot/go_modules/github.com/stretchr/testify-1.8.4 Bump github.com/stretchr/testify from 1.8.2 to 1.8.4

Merge pull request #381 from carvel-dev/dependabot/go_modules/github.com/stretchr/testify-1.8.4 Bump github.com/stretchr/testify from 1.8.2 to 1.8.4 #411