chore(deps): update github/codeql-action action to v2.21.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/semgrep.yaml

@@ -29,7 +29,7 @@ jobs:
 
       # Upload findings to GitHub Advanced Security Dashboard [step 2/2]
       - name: Upload SARIF file for GitHub Advanced Security Dashboard
-        uses: github/codeql-action/upload-sarif@489225d82a57396c6f426a40e66d461b16b3461d # v2.20.4
+        uses: github/codeql-action/upload-sarif@1813ca74c3faaa3a2da2070b9b8a0b3e7373a0d8 # v2.21.0
         with:
           sarif_file: semgrep.sarif
         if: always()