Bump oxsecurity/megalinter from 7 to 8

Bumps [oxsecurity/megalinter](https://github.com/oxsecurity/megalinter) from 7 to 8.
- [Release notes](https://github.com/oxsecurity/megalinter/releases)
- [Changelog](https://github.com/oxsecurity/megalinter/blob/main/CHANGELOG.md)
- [Commits](oxsecurity/megalinter@v7...v8)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/yamllint.yml

@@ -18,4 +18,4 @@ jobs:
       uses: actions/checkout@v4
 
     - name: yamllint
-      uses: oxsecurity/megalinter/flavors/ci_light@v7
+      uses: oxsecurity/megalinter/flavors/ci_light@v8