Fix brew publication

Author: eseliger

.github/workflows/goreleaser.yml

@@ -30,4 +30,5 @@ jobs:
           version: latest
           args: release --rm-dist
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # Use separate access token, because we need a scope:repo token to publish the brew formula.
+          GITHUB_TOKEN: ${{ secrets.GH_PAT }}