feat: adding just tag command

feat: adding custom label support

Revert "feat: adding parallel processing"

This reverts commit c3c1bcd.

feat: adding parallel processing

fix: filtering values files based off directory filter (#5)

fix: setting release version in golang homebrew golang build

fix: windows binary name

fix: handling filepath.Clean properly

fix: including namespace in name duplication check

fix: secret deletion

This commit is fixing the unjustifiably ignored secret deletion
of a removed secret that is still in the gitops state when
no cluster limit is specified in the command.