ci: make docs sync non-blocking when PAT expires

The WHEELS_DEV_PAT secret has bad credentials since the monorepo merge,
causing the sync-docs job to fail and mark the entire CI as failed even
though all 43 test jobs pass. Add continue-on-error so docs sync
failures don't block development.

The PAT still needs to be regenerated in repo settings to restore
docs sync functionality.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bpamiri

.github/workflows/docs-sync.yml

@@ -9,6 +9,8 @@ on:
 jobs:
   sync:
     runs-on: ubuntu-latest
+    # Docs sync should not block CI — PAT may expire independently
+    continue-on-error: true
     steps:
       - name: Checkout wheels repo
         uses: actions/checkout@v4