validate the action yml file too

Author: jazzsequence

.github/workflows/lint.yml

@@ -4,6 +4,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
+      - uses: jazzsequence/github-action-validator@v1
       - name: Lint
         run: shellcheck bin/*.sh