fix: configure homebrew cask pr without fork (#242)

specify branch and base so goreleaser pushes to a feature branch on
the same repo and creates a pr, instead of trying to fork (which
fails with github app tokens).

Author: TimPietruskyRunPod

.goreleaser.yml

@@ -56,8 +56,13 @@ homebrew_casks:
       owner: runpod
       name: homebrew-runpodctl
       token: "{{ .Env.HOMEBREW_TAP_TOKEN }}"
+      branch: "runpodctl-{{ .Version }}"
       pull_request:
         enabled: true
+        base:
+          owner: runpod
+          name: homebrew-runpodctl
+          branch: main
     commit_author:
       name: runpod
       email: [email protected]