ci: bump sonarsource/sonarqube-scan-action from 5 to 6 (#37)

Bumps [sonarsource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action) from 5 to 6.
- [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases)
- [Commits](SonarSource/sonarqube-scan-action@v5...v6)

---
updated-dependencies:
- dependency-name: sonarsource/sonarqube-scan-action
  dependency-version: '6'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -75,7 +75,7 @@ jobs:
           fetch-depth: 0
       - name: Analyze with SonarCloud
         if: env.SONAR_TOKEN != ''
-        uses: sonarsource/sonarqube-scan-action@v5
+        uses: sonarsource/sonarqube-scan-action@v6
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}