Fix test regex for proxy error message

The test was failing due to an incorrect regex
pattern in the expected error message.
The regex has been updated to match the correct
proxy-related error message format.
This ensures the test properly validates conflicting
proxy settings and prevents false failures.

Signed-off-by: Shahaf Bahar <[email protected]>

Author: sbahar619

tests/test_resources.py

@@ -128,6 +128,6 @@ def test_proxy_conflict_raises_value_error(self, monkeypatch):
         with pytest.raises(
             ValueError,
             match="Conflicting proxy settings: client_configuration.proxy=http://not-env-proxy.com, "
-            "but the environment variable 'OPENSHIFT_PYTHON_WRAPPER_CLIENT_USE_PROXY' defines proxy as http://env-proxy.com.",
+            "but the environment variable 'HTTPS_PROXY/HTTP_PROXY' defines proxy as http://env-proxy.com.",
         ):
             get_client(client_configuration=client_configuration)