TEMPORARY: Switch to pull_request trigger for testing

This commit is for testing the collaborator permission check and must be
reverted before merge:

1. Changes trigger from pull_request_target to pull_request so this
   branch's workflow definition runs instead of main's.

2. Adds a dummy change to cuda_bindings/pyproject.toml to trigger the
   restricted-paths detection.

REVERT THIS COMMIT BEFORE MERGE.

Made-with: Cursor

Author: rwgk

.github/workflows/restricted-paths-guard.yml

@@ -6,7 +6,8 @@ name: "CI: Restricted Paths Guard"
 on:
   # Run on drafts too so maintainers get early awareness on WIP PRs.
   # Label updates on fork PRs require pull_request_target permissions.
-  pull_request_target:
+  # TEMPORARY: Using pull_request for testing; revert to pull_request_target before merge.
+  pull_request:
     types:
       - opened
       - synchronize

cuda_bindings/pyproject.toml

@@ -1,5 +1,6 @@
 # SPDX-FileCopyrightText: Copyright (c) 2023-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE
+# XXX DUMMY CHANGE FOR TESTING restricted-paths-guard.yml - REMOVE BEFORE MERGE XXX
 [build-system]
 requires = [
     "setuptools>=80.0.0",