Enable CodeQL scanning of GitHub Actions

Author: trask

.github/workflows/codeql-daily.yml

@@ -31,7 +31,9 @@ jobs:
       - name: Initialize CodeQL
         uses: github/codeql-action/init@dd746615b3b9d728a6a37ca2045b68ca76d4841a # v3.28.8
         with:
-          languages: java
+          languages:
+            - java
+            - actions
           # using "latest" helps to keep up with the latest Kotlin support
           # see https://github.com/github/codeql-action/issues/1555#issuecomment-1452228433
           tools: latest