test: unpin action to verify pinact auto-fix

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: laughingman7743

.github/workflows/docs-trigger.yaml

@@ -11,7 +11,7 @@ jobs:
   trigger-docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
+      - uses: actions/github-script@v7
         with:
           script: |
             await github.rest.actions.createWorkflowDispatch({