[Misc] Add SPDX-FileCopyrightText (#19100)

Signed-off-by: simon-mo <simon.mo@hey.com>

tests/v1/shutdown/test_delete.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Test that we handle a startup Error and shutdown."""
 
 import pytest

tests/v1/shutdown/test_forward_error.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Test that we handle an Error in model forward and shutdown."""
 
 import asyncio

tests/v1/shutdown/test_processor_error.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Test error handling in Processor. Should not impact other reqs."""
 
 import asyncio

tests/v1/shutdown/test_startup_error.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Test that we handle a startup Error and shutdown."""
 
 import pytest

tests/v1/shutdown/utils.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Shutdown test utils"""
 
 SHUTDOWN_TEST_TIMEOUT_SEC = 120