Use macOS runner because linuxbrew tries to validate the forumla for the host OS

Author: kateinoigakukun

.github/workflows/publish.yml

@@ -6,7 +6,7 @@ on:
 jobs:
   pr-pull:
     if: contains(github.event.pull_request.labels.*.name, 'pr-pull')
-    runs-on: ubuntu-latest
+    runs-on: macos-12
     steps:
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@master