build(deps): bump megalinter/megalinter from 6.20.1 to 6.21.0 (#1699)

Bumps [megalinter/megalinter](https://github.com/megalinter/megalinter) from 6.20.1 to 6.21.0.
- [Release notes](https://github.com/megalinter/megalinter/releases)
- [Changelog](https://github.com/oxsecurity/megalinter/blob/main/CHANGELOG.md)
- [Commits](https://github.com/megalinter/megalinter/compare/v6.20.1...v6.21.0)

---
updated-dependencies:
- dependency-name: megalinter/megalinter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/checks.yml

@@ -22,7 +22,7 @@ jobs:
       - uses: golangci/golangci-lint-action@v3.4.0
         with:
           version: v1.47.2
-      - uses: megalinter/megalinter/flavors/go@v6.20.1
+      - uses: megalinter/megalinter/flavors/go@v6.21.0
         env:
           DEFAULT_BRANCH: master
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}