Bump SonarSource/sonarqube-scan-action (#391)

Bumps the github_actions group with 1 update in the /.github/workflows directory: [SonarSource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action).


Updates `SonarSource/sonarqube-scan-action` from 5.3.1 to 6.0.0
- [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases)
- [Commits](SonarSource/sonarqube-scan-action@v5.3.1...v6.0.0)

---
updated-dependencies:
- dependency-name: SonarSource/sonarqube-scan-action
  dependency-version: 6.0.0
  dependency-type: direct:production
  dependency-group: github_actions
...

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

Author: dependabot[bot]

.github/workflows/sonar.yml

@@ -58,7 +58,7 @@ jobs:
           cd frontend
           pnpm run coverage
       - name: Scan Frontend
-        uses: SonarSource/sonarqube-scan-action@v5.3.1
+        uses: SonarSource/sonarqube-scan-action@v6.0.0
         env:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN_FRONTEND }} # analysis token associated to your project
           SONAR_HOST_URL: ${{ secrets.SONAR_HOST }}