feat: Set default logging level to align with Flask's defaults (#336)

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": "INFO", "handlers": ["wsgi"]},
+            "root": {"level": "WARNING", "handlers": ["wsgi"]},
         }
     )
 

tests/test_functions/execution_id/main.py

@@ -12,7 +12,7 @@ def print_message(request):
 
 def log_message(request):
     json = request.get_json(silent=True)
-    logger.info(json.get("message"))
+    logger.warning(json.get("message"))
     return "success", 200
 
 
@@ -27,7 +27,7 @@ def error(request):
 def sleep(request):
     json = request.get_json(silent=True)
     message = json.get("message")
-    logger.info(message)
+    logger.warning(message)
     time.sleep(1)
-    logger.info(message)
+    logger.warning(message)
     return "success", 200