Bump github/codeql-action from 2.1.19 to 2.1.21

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 2.1.19 to 2.1.21.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/f5d217be74900c6ac8fbbe53f3c10376ba4e64da...c7f292ea4f542c473194b33813ccd4c207a6c725)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/docker-linter.yml

@@ -45,7 +45,7 @@ jobs:
           no-fail: true
 
       - name: Upload Results
-        uses: github/codeql-action/upload-sarif@f5d217be74900c6ac8fbbe53f3c10376ba4e64da
+        uses: github/codeql-action/upload-sarif@c7f292ea4f542c473194b33813ccd4c207a6c725
         with:
           sarif_file: hadolint-results.sarif
           wait-for-processing: true