chore(deps): pin homebrew/actions action to 7bb9b7f

Author: renovate[bot]

.github/workflows/validate-brewfiles.yml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Homebrew
-        uses: Homebrew/actions/setup-homebrew@main
+        uses: Homebrew/actions/setup-homebrew@7bb9b7fcbcd6335a22b1680ef2aa74964f9a9ad3 # main
 
       - name: Validate Brewfiles
         shell: bash