all: updating SHA-1 checksum for com_google_api_grpc_google_common_protos Skylark rule.

The new value is reported as the expected value when performing

$ bazel build //...

on a clean pull of this repo. The new value can also be confirmed via

$ curl http://central.maven.org/maven2/com/google/api/grpc/proto-google-common-protos/1.0.0/proto-google-common-protos-1.0.0.jar | sha1sum

Author: jwpowell055