Fixed YAML syntax

Author: puneetbehl

.github/workflows/gradle.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Run Spring Boot Tests
         run: ./gradlew gorm-hibernate5-spring-boot:test --no-daemon
       - name: Publish Test Report
-	    if: failure()
+        if: failure()
         uses: scacap/action-surefire-report@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}