fix create_tracing_app_config error (#19884) (#20004)

Co-authored-by: codly <codly.fun@gmail.com>

api/core/ops/ops_trace_manager.py

             return None
 
         tracing_provider = app_ops_trace_config.get("tracing_provider")
-        if tracing_provider is None or tracing_provider not in provider_config_map:
+        if tracing_provider is None:
+            return None
+        try:
+            provider_config_map[tracing_provider]
+        except KeyError:
             return None
 
         # decrypt_token