fix: align WSGI logging level with ASGI when execution ID logging is enabled

When LOG_EXECUTION_ID is enabled, the WSGI implementation was setting the root logger
to WARNING level, which silenced info-level logs. This was inconsistent with:
- The ASGI implementation which correctly uses INFO level
- The default setup_logging() function which also uses INFO level

This change ensures that logger.info() calls are visible in both WSGI and ASGI stacks
when execution ID logging is enabled.

Author: taeold

src/functions_framework/__init__.py

@@ -437,7 +437,7 @@ def _configure_app_execution_id_logging():
                     "stream": "ext://functions_framework.execution_id.logging_stream",
                 },
             },
-            "root": {"level": "WARNING", "handlers": ["wsgi"]},
+            "root": {"level": "INFO", "handlers": ["wsgi"]},
         }
     )