V39 Canonical Promotion: Bound promotion workflow runtime

Add a promotion-job timeout and force-exit the uapi Jest promotion list so V39 promotion validation cannot remain indefinitely pending after tests complete.

Validation: git diff --check; pnpm --dir uapi exec jest --help includes --forceExit.

Author: geraldarthurdavis

.github/workflows/v39-canon-promotion.yml

@@ -32,6 +32,7 @@ jobs:
         )
       }}
     runs-on: ubuntu-latest
+    timeout-minutes: 30
 
     steps:
       - name: Checkout version branch
@@ -132,7 +133,8 @@ jobs:
             tests/conversationTelemetryProofPanel.test.tsx \
             tests/api/conversationRehearsal.test.ts \
             tests/conversationRehearsalPanel.test.tsx \
-            --runInBand
+            --runInBand \
+            --forceExit
           git diff --check
 
       - name: Promote V39 canon files