Use Checks API for skipped integration tests (#4390)

## Changes

PR #4268 migrated from Statuses API to Checks API for integration test
reporting, but the skip/auto-approve paths still used the Statuses API
with context "Integration Tests Check" instead of the Checks API with
name "Integration Tests". This caused the required check to remain
pending when integration tests were skipped.

This change:
- Updates push.yml to use Checks API for skip and merge queue cases
- Consolidates merge queue handling in push.yml
- Removes redundant auto-approve job from start-integration-tests.yml

## Tests

I can't test this. Let's merge and see if future PRs that don't need
integration tests are skipped.

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: pietern

.github/workflows/push.yml

@@ -369,6 +369,10 @@ jobs:
       group: databricks-deco-testing-runner-group
       labels: ubuntu-latest-deco
 
+    permissions:
+      checks: write
+      contents: read
+
     environment: "test-trigger-is"
 
     steps:
@@ -394,29 +398,44 @@ jobs:
             -f commit_sha=${{ github.event.pull_request.head.sha }}
 
       # Skip integration tests if the primary "test" target is not triggered by this change.
+      # Use Checks API (not Statuses API) to match the required "Integration Tests" check.
       - name: Skip integration tests (pull request)
         if: ${{ github.event_name == 'pull_request' && !contains(fromJSON(needs.testmask.outputs.targets), 'test') }}
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |-
-          gh api -X POST -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            /repos/${{ github.repository }}/statuses/${{ github.event.pull_request.head.sha }} \
-            -f 'state=success' \
-            -f 'context=Integration Tests Check' \
-            -f 'description=⏭️ Skipped'
-
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.checks.create({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: 'Integration Tests',
+              head_sha: '${{ github.event.pull_request.head.sha }}',
+              status: 'completed',
+              conclusion: 'success',
+              output: {
+                title: 'Integration Tests',
+                summary: '⏭️ Skipped (changes do not require integration tests)'
+              }
+            });
+
+      # Auto-approve for merge group since tests already passed on the PR.
+      # Use Checks API (not Statuses API) to match the required "Integration Tests" check.
       - name: Auto-approve for merge group
         if: ${{ github.event_name == 'merge_group' }}
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |-
-          gh api -X POST -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            /repos/${{ github.repository }}/statuses/${{ github.sha }} \
-            -f 'state=success' \
-            -f 'context=Integration Tests Check' \
-            -f 'description=⏭️ Skipped'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.checks.create({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: 'Integration Tests',
+              head_sha: context.sha,
+              status: 'completed',
+              conclusion: 'success',
+              output: {
+                title: 'Integration Tests',
+                summary: '⏭️ Auto-approved for merge queue (tests already passed on PR)'
+              }
+            });
 
       - name: Trigger integration tests (push to main)
         if: ${{ github.event_name == 'push' }}

.github/workflows/start-integration-tests.yml

@@ -2,45 +2,12 @@ name: start-integration-tests
 
 on:
   workflow_dispatch:
-  merge_group:
 
 jobs:
-  # Auto-approve integration tests for merge queue.
-  # The tests already passed on the PR, so we don't need to run them again.
-  auto-approve:
-    if: github.event_name == 'merge_group'
-
-    runs-on:
-      group: databricks-deco-testing-runner-group
-      labels: ubuntu-latest-deco
-
-    permissions:
-      checks: write
-      contents: read
-
-    steps:
-      - name: Auto-approve Check for Merge Queue
-        uses: actions/github-script@v7
-        with:
-          script: |
-            await github.rest.checks.create({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              name: 'Integration Tests',
-              head_sha: context.sha,
-              status: 'completed',
-              conclusion: 'success',
-              output: {
-                title: 'Integration Tests',
-                summary: 'Auto-approved for merge queue (tests already passed on PR)'
-              }
-            });
-
   # Trigger integration tests for PRs.
   # This workflow triggers the integration test workflow in a different repository.
   # It requires secrets from the "test-trigger-is" environment, which are only available to authorized users.
   trigger:
-    if: github.event_name == 'workflow_dispatch'
 
     runs-on:
       group: databricks-deco-testing-runner-group