fix: Upgrade SonarCloud GitHub Action (#925)

* test

* clean up

Author: YeagerAI-Bulat

.github/workflows/unit-tests-pr.yml

@@ -33,8 +33,7 @@ jobs:
       - run: pip install -r backend/protocol_rpc/requirements.txt
       - run: pip install pytest-cov
       - run: pytest tests/unit --cov=backend --cov-report=xml --cov-branch
-      # - name: SonarCloud Scan
-      #   uses: sonarsource/sonarqube-scan-action@v4.1.0
-
-      #   env:
-      #     SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+      - name: SonarCloud Scan
+        uses: sonarsource/sonarqube-scan-action@v5.0.0
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}