chore(deps): update protobuf packages to v3.11.0 (#101)

Author: renovate-bot

pom.xml

@@ -162,7 +162,7 @@
         <grpc.version>1.25.0</grpc.version>
         <guava.version>28.1-android</guava.version>
         <opencensus.version>0.24.0</opencensus.version>
-        <protobuf.version>3.10.0</protobuf.version>
+        <protobuf.version>3.11.0</protobuf.version>
         <threeten.version>1.4.0</threeten.version>
     </properties>