test(azure): import subprocess and sys inside the env var regression test

The module import block now matches the merge base again, so the branch merges cleanly onto the default branch, which dropped the sys.path shim and its sys import. The subprocess test still needs both modules, so it imports them locally.

tests/test_litellm/llms/azure/test_azure_common_utils.py

@@ -1,6 +1,5 @@
 import json
 import os
-import subprocess
 import sys
 import traceback
 from typing import Callable, Optional
@@ -446,6 +445,9 @@ def test_initialize_honors_explicit_max_retries(setup_mocks, configured, expecte
 
 
 def test_default_max_retries_env_var_reaches_azure_sdk_client():
+    import subprocess
+    import sys
+
     code = (
         "from litellm.llms.azure.common_utils import BaseAzureLLM\n"
         "client = BaseAzureLLM().get_azure_openai_client("