Bump protobuf to 3.20.2 (#3680)

Wovchena · web-flow · commit b9719a4684af · 2023-01-25T14:48:15.000+04:00
diff --git a/ci/requirements-demos.txt b/ci/requirements-demos.txt
@@ -102,7 +102,7 @@ pillow==9.3.0
     #   openvino-dev
 pooch==1.6.0
     # via librosa
-protobuf==3.20.1
+protobuf==3.20.2
     # via
     #   ovmsclient
     #   tensorboardx
