Add missing GRPC artifacts to lib versions.

These are grpc-protoc, grpc-testing and grpc-protobuf-lite.

Test: ./gradlew bOS
Change-Id: I6f3f415e1cb6e41cf52558282cf0bfc743280c15
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 0a6e37b..e080494 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -144,9 +144,12 @@
 junit = { module = "junit:junit", version = "4.13.2" }
 gcmNetworkManager = { module = "com.google.android.gms:play-services-gcm", version = "17.0.0" }
 googleCompileTesting = { module = "com.google.testing.compile:compile-testing", version = "0.18" }
-grpcBinder = { module = "io.grpc:grpc-binder", version.ref = "grpc" }
 grpcAndroid = { module = "io.grpc:grpc-android", version.ref = "grpc" }
+grpcBinder = { module = "io.grpc:grpc-binder", version.ref = "grpc" }
+grpcProtobufCompiler = { module = "io.grpc:protoc-gen-grpc-java", version.ref = "grpc" }
+grpcProtobufLite = { module = "io.grpc:grpc-protobuf-lite", version.ref = "grpc" }
 grpcStub = { module = "io.grpc:grpc-stub", version.ref = "grpc" }
+grpcTesting = { module = "io.grpc:grpc-testing", version.ref = "grpc" }
 gson = { module = "com.google.code.gson:gson", version = "2.9.0" }
 guava = { module = "com.google.guava:guava", version.ref = "guavaJre" }
 guavaAndroid = { module = "com.google.guava:guava", version = "31.1-android" }