Add GHA SHA for github/codeql-action

Author: maresb

.github/workflows/zizmor.yml

@@ -27,7 +27,7 @@ jobs:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Upload SARIF file
-        uses: github/codeql-action/upload-sarif@v4
+        uses: github/codeql-action/upload-sarif@4e94bd11f71e507f7f87df81788dff88d1dacbfb # v4.31.0
         with:
           # Path to SARIF file relative to the root of the repository
           sarif_file: results.sarif