set a GH token for goreleaser

the provided GITHUB_TOKEN is not enough if we need to push to another repo (brew tap): https://github.com/goreleaser/goreleaser-action#limitation

.github/workflows/goreleaser.yml

@@ -25,4 +25,4 @@ jobs:
           version: latest
           args: release --rm-dist
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GORELEASER_GITHUB_TOKEN }}