disable hassfest while it's broken

Author: craigbarratt

.github/workflows/validate.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v2"
-      - uses: home-assistant/actions/hassfest@master
+      # - uses: home-assistant/actions/hassfest@master
 
   style:
     runs-on: "ubuntu-latest"