chore(ci): use !cancelled() instead of always() for final job

Combined with the workflow's `cancel-in-progress` group, `if: always()`
overrides cancellation and runs the aggregator even on superseded
commits. `!cancelled()` still runs on upstream success or failure but
skips when the workflow is cancelled.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.github/workflows/test.yml

@@ -156,7 +156,9 @@ jobs:
       - fetch_from_github
     runs-on: ubuntu-latest
     timeout-minutes: 1
-    if: always()
+    # Run on success or upstream failure but skip when the workflow is cancelled
+    # — `always()` would override `cancel-in-progress` and waste a runner.
+    if: ${{ !cancelled() }}
     steps:
       - name: Check CI job results
         if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') || contains(needs.*.result, 'skipped')