fix(release): add base to gorelease brew script

Author: jayshrivastava

.goreleaser.yaml

@@ -137,4 +137,11 @@ brews:
         enabled: true
 
         # Whether to open the PR as a draft or not.
-        draft: true
+        draft: true
+
+        # Base can also be another repository, in which case the owner and name
+        # above will be used as HEAD, allowing cross-repository pull requests.
+        base:
+          owner: smtg-ai
+          name: homebrew-claude-squad
+          branch: main