sonar: Run in public mode (#157)

* sonar: Run in public mode

* sonar: Fix secrets not being allowed in if conditions

Author: echarrod

.github/workflows/sonar.yml

@@ -1,6 +1,3 @@
-# This workflow will build a golang project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
-
 name: Sonar Report
 
 on:
@@ -25,6 +22,7 @@ jobs:
         run: go test -coverpkg=./... -coverprofile=coverage.out -json ./... > sonar-report.json
 
       - name: Upload coverage reports to Sonar
-        uses: sonarsource/sonarcloud-github-action@master
         env:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+        if: github.event.pull_request.head.repo.full_name == github.repository || env.SONAR_TOKEN != ''
+        uses: sonarsource/sonarcloud-github-action@master