Update demo-build.yml from feature/build-doctor

Author: vibhutikumar07

.github/workflows/demo-build.yml

@@ -18,3 +18,30 @@ jobs:
           cache: maven
       - name: Build with Maven
         run: mvn clean install
+
+  diagnose:
+    needs: build
+    if: failure()
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Install dependencies
+        run: npm install @actions/github @google/generative-ai @octokit/core
+      - name: Run Build Doctor Analysis
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }}
+          WORKFLOW_RUN_ID: ${{ github.run_id }}
+          WORKFLOW_NAME: ${{ github.workflow }}
+          REPO_OWNER: ${{ github.repository_owner }}
+          REPO_NAME: ${{ github.event.repository.name }}
+        run: node .github/scripts/analyze-failure.js