Bump gRPC to version 1.9.0 and Protobuf to version 3.5.1
<maven-surefire-plugin.version>2.20.1</maven-surefire-plugin.version>
<!-- dependencies -->
- <grpc.version>1.8.0</grpc.version>
+ <grpc.version>1.9.0</grpc.version>
<slf4j.version>1.7.25</slf4j.version>
<auto-service.version>1.0-rc3</auto-service.version>
<plexus-compiler-javac-errorprone.version>2.8.2</plexus-compiler-javac-errorprone.version>
<log4j2.version>2.10.0</log4j2.version>
<jcommander.version>1.72</jcommander.version>
<!-- should be in sync with protobuf grpc dependencies -->
- <protobuf.version>3.4.0</protobuf.version>
+ <protobuf.version>3.5.1</protobuf.version>
<!-- test dependencies -->
<testng.version>6.13.1</testng.version>
