chore: Update module path to nobl9/go-yaml

[nieomylnieja]

We can no longer proceed with the replace clause for the forked version as running go install on projects using this fork results in an error:

go install github.com/nobl9/sloctl/cmd/sloctl@latest
go: downloading github.com/nobl9/sloctl v0.3.2
go: github.com/nobl9/sloctl/cmd/sloctl@latest (in github.com/nobl9/sloctl@v0.3.2):
	The go.mod file for the module providing named packages contains one or
	more replace directives. It must not contain directives that would cause
	it to be interpreted differently than if it were the main module.