remove github token from sonarcloud workflow

Author: sjvrijn

template/{% if HasWorkflows %}.github{% endif %}/workflows/{% if AddSonarCloud %}sonarcloud.yml{% endif %}

@@ -36,5 +36,4 @@ jobs:
       - name: SonarCloud Scan
         uses: SonarSource/sonarqube-scan-action@v5
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}