GH workflows: pin dependencies

.github/workflows/scorecard.yml

@@ -69,6 +69,6 @@ jobs:
       # Upload the results to GitHub's code scanning dashboard (optional).
       # Commenting out will disable upload of results to your repo's Code Scanning dashboard
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@v3
+        uses: github/codeql-action/upload-sarif@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea
         with:
           sarif_file: results.sarif