Add golint linter as part of hack/go-lint.sh

[Kaitou786]

Describe the bug
Currently we check our code with golangci-lint, which in itself catches most of the things, but having comments over exported function is not caught by it, it'll be nice to enable both the linters. Currently there are some warnings by this linter on the main branch

To Reproduce
Run: golint ./... | grep -v zz_generated #to ignore the auto-generated files

Expected behavior
No warnings

The existing warning should be removed and the lint should also be part of CI so we don't have any warnings from future