docs: add USERS.md to track users of goreleaser (#2613)
docs: add USERS.md to track users of goreleaser (#2613)

Signed-off-by: Engin Diri <d38d7f0cbd2d23ecd3ade5f1c387fc4df4ff26b8@mail.schwarz>
goreleaser/goreleaser,goreleaser/goreleaser,goreleaser/goreleaser