Sync regression issues to ADO directly from labeler workflow

GitHub Actions events triggered by GITHUB_TOKEN don't trigger other
workflows. When regexLabeler adds the 'regression' label, syncAdo.yml
never fires. This adds the ADO sync step directly into the labeler
workflow (conditional on regression label being present) so regression
bugs automatically create ADO work items.

Changes:
- Added regression label check via github-script
- Added conditional Azure login + ADO sync steps
- Changed runner to windows-latest (required for Azure CLI action)
- Added id-token:write permission for Azure OIDC

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Navdeep Singh

.github/workflows/regexLabeler.yml

@@ -4,6 +4,7 @@ on:
     types: [opened, edited]
 
 permissions:
+  id-token: write
   issues: write
   contents: read
 
@@ -27,3 +28,40 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         assignees: ambikakunnath
         includeLabels: regression
+
+    # Check if the issue now has the regression label (added by labeler above)
+    - name: Check for regression label
+      id: check_regression
+      uses: actions/github-script@v7
+      with:
+        script: |
+          const labels = await github.rest.issues.listLabelsOnIssue({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            issue_number: context.issue.number
+          });
+          const hasRegression = labels.data.some(l => l.name === 'regression');
+          core.setOutput('has_regression', hasRegression.toString());
+
+    # Sync regression issues to ADO directly (syncAdo.yml won't trigger from workflow-added labels)
+    - name: Azure login
+      if: steps.check_regression.outputs.has_regression == 'true'
+      uses: azure/login@v2
+      with:
+        client-id: ${{ secrets.AZURE_CLIENT_ID }}
+        tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+        subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+
+    - name: Sync regression to ADO
+      if: steps.check_regression.outputs.has_regression == 'true'
+      uses: Navdeep-ss/github-actions-issue-to-work-item@simple-sync-azurecli
+      env:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        label: 'regression'
+        ado_organization: 'microsoft'
+        ado_project: 'Edge'
+        ado_area_path: 'Edge\Web Experience\WebView2'
+        ado_tags: 'WV2SupportAutoFile'
+        ado_gh_closed_tag: 'WV2_GitHub_Closed'
+        update_issue_body: 'false'