Modified Scan workflow to contain PR number during a PR (#117)

Author: mandreko-bitwarden

.github/workflows/scan.yml

@@ -74,5 +74,5 @@ jobs:
       - name: Scan with SonarCloud
         env:
             SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-        run: mvn clean install -Dgpg.skip=true sonar:sonar
+        run: mvn clean install -Dgpg.skip=true sonar:sonar ${{ contains(github.event_name, 'pull_request') && format('-Dsonar.pullrequest.key={0}', github.event.pull_request.number) || '' }}