♻ Fix problems caused by outdated CI/CD, deps and code quality

Author: garlontas

.github/workflows/build.yml

@@ -21,8 +21,7 @@ jobs:
         run: pip install tox
       - name: Run tox
         run: tox -e py
-      - name: SonarCloud Scan
-        uses: SonarSource/sonarcloud-github-action@master
+      - name: SonarQube Scan
+        uses: SonarSource/sonarqube-scan-action@v6
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

.github/workflows/unittests.yml

@@ -23,7 +23,7 @@ jobs:
       # reference the matrixe python version here.
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: 3.10
 
       # Cache the installation of Poetry itself, e.g. the next step. This prevents the workflow
       # from installing Poetry every time, which can be slow. Note the use of the Poetry version