Update sonarqube.yml

Author: noahhusby

.github/workflows/sonarqube.yml

@@ -16,6 +16,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
       - name: Cache SonarQube packages
         uses: actions/cache@v1
         with: