gh: remove sonarcloud scan as no token is available

Author: Bl00D4NGEL

.github/workflows/tests.yaml

@@ -41,10 +41,3 @@ jobs:
             - name: Run Unit Tests
               run: |
                 vendor/bin/phpunit --coverage-text --coverage-clover reports/coverage.xml
-
-            # SonarCloud
-            - name: SonarCloud Scan
-              uses: SonarSource/sonarcloud-github-action@master
-              env:
-                GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-                SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}