Merge pull request #63 from hackersandslackers/renovate/protobuf-3.x

Author: toddbirchard

requirements.txt

@@ -9,7 +9,7 @@ google-resumable-media==0.7.1
 googleapis-common-protos==1.6.0
 idna==2.8
 pprint==0.1
-protobuf==3.18.3
+protobuf==3.20.3
 pyasn1==0.4.5
 pyasn1-modules==0.2.5
 pytz==2019.1