Update test_security.py to include licensing information and improve import organization

- Added Apache License 2.0 information at the top of the test_security.py file to ensure compliance.
- Reorganized import statements for better clarity and consistency.

Signed-off-by: Victor Chang <[email protected]>

Author: mocsharp

tools/pipeline-generator/tests/test_security.py

@@ -1,8 +1,19 @@
+# Copyright 2025 MONAI Consortium
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#     http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 """Test security features of the pipeline generator."""
 
-import pytest
 from pathlib import Path
 
+import pytest
 from pipeline_generator.generator.app_generator import AppGenerator