Resolve NAT-1048 "Service version"

Closes NAT-1048

test/conftest.py

@@ -56,11 +56,13 @@ def pytest_configure(config):
     """Set an environment variable before loading any test modules."""
     # Set environment variables for the test session
     os.environ["OSS_PARAMS_FILENAME"] = "gso/oss-params-example.json"
+    os.environ["GSO_SERVICE_CONFIG"] = "gso/gso-services-config.json"
     os.environ["TESTING"] = "true"
 
     # Register finalizers to clean up after tests are done
     def cleanup() -> None:
         del os.environ["OSS_PARAMS_FILENAME"]
+        del os.environ["GSO_SERVICE_CONFIG"]
         del os.environ["TESTING"]
 
     pytest.session_cleanup = cleanup