ci: codeql actions (#629)

* ci: codeql actions

* ci: delete dependabot-meta

Author: andykenward

.github/workflows/codeql.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: ['javascript-typescript']
+        language: ['javascript-typescript', 'actions']
     steps:
       - name: Checkout repository
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 #v5.0.0