dep: update protobuf and gRPC (#882)

* dep: update protobuf and gRPC

@chingor13 fixes #845

* remove java format plugin that's not compatible with java 11

* fix merge conflict

Co-authored-by: Jeff Ching <chingor@google.com>

dependencies.properties

@@ -23,9 +23,9 @@ version.gax_httpjson=0.70.1
 # Versions for dependencies which actual artifacts differ between Bazel and Gradle.
 # Gradle build depends on prebuilt maven artifacts, while Bazel build depends on Bazel workspaces
 # with the sources.
-version.com_google_protobuf=3.11.1
+version.com_google_protobuf=3.11.4
 version.google_java_format=1.1
-version.io_grpc=1.27.0
+version.io_grpc=1.27.1
 
 # Maven artifacts.
 # Note, the actual name of each property matters (bazel build scripts depend on it).