Automatically add Job Summary as PR comment

Rather than requiring a separate step to add a PR comment,
the `gradle-build-action` can now automatically add the Job Summary
as a PR comment

Fixes #1020

.github/workflows/demo-pr-build-scan-comment.yml

@@ -10,18 +10,9 @@ jobs:
       uses: actions/checkout@v4
     - name: Setup Gradle
       uses: ./
+      with:
+        add-pr-comment: true
     - name: Run build with Gradle wrapper
       id: gradle
       working-directory: .github/workflow-samples/kotlin-dsl
       run: ./gradlew build --scan
-    - name: "Add Build Scan URL as PR comment"
-      uses: actions/github-script@v7
-      with:
-        github-token: ${{secrets.GITHUB_TOKEN}}
-        script: |
-          github.rest.issues.createComment({
-            issue_number: context.issue.number,
-            owner: context.repo.owner,
-            repo: context.repo.repo,
-            body: 'PR ready for review: ${{ steps.gradle.outputs.build-scan-url }}'
-          })