chore(ci): analyse actions in codeql

Ref: https://github.blog/changelog/2024-12-17-find-and-fix-actions-workflows-vulnerabilities-with-codeql-public-preview/

Signed-off-by: Dominic Evans <[email protected]>

.github/workflows/codeql-analysis.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: ["go"]
+        language: ["actions", "go"]
     steps:
     - name: Checkout repository
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2