update protobuf version

NicolasM0 · NicolasM0 · commit 5f8019015a68 · 2022-04-29T09:39:27.000+02:00
_descriptor_pool don't have `enum_types_by_name` field in version 3.13.0
diff --git a/requirements.txt b/requirements.txt
@@ -1,4 +1,4 @@
-protobuf>=3.13.0
+protobuf>=3.20.1
 aiogrpc>=1.5
 grpcio>=1.11.0
 importlib_resources>=1.0.2;python_version<"3.7"
