Upgrade com.google.protobuf:protoc and io.grpc:protoc-gen-grpc-java to support aarch64

[rgoodman22]

When trying to mvn clean install the java project on my mac with the M1 chip, I ran into mising artifact errors with com.google.protobuf:protoc:3.3.0 and io.grpc:protoc-gen-grpc-java:1.4.0. I was able to resolve this with upgrades, but the upgrade to io.grpc caused the error detailed here . I was able to resolve this by upgrading the version of grpc.

[salesforce-cla[bot]]

Thanks for the contribution! It looks like @robertgoodmanSF is an internal user so signing the CLA is not required. However, we need to confirm this.