build(nix): fix goreleaser config path (#4151)

default is `goreleaser.nix`

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

.goreleaser.yaml

@@ -197,6 +197,7 @@ nix:
       name: nur
     homepage: https://goreleaser.com
     description: Deliver Go binaries as fast and easily as possible
+    path: pkgs/goreleaser/default.nix
     license: mit
     install: |-
       mkdir -p $out/bin