Run tests based on labels (#10456)

.github/workflows/execute-notebook.yml

@@ -6,6 +6,7 @@ on:
     paths:
       - "python/sglang/**"
       - "docs/**"
+    types: [synchronize, labeled]
   workflow_dispatch:
 
 
@@ -17,7 +18,7 @@ concurrency:
 jobs:
   run-all-notebooks:
     runs-on: 1-gpu-runner
-    if: github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request'
+    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'run-ci')
     steps:
       - name: Checkout code
         uses: actions/checkout@v4