Add safe guards to ensure we don't build protoc from source

PiperOrigin-RevId: 933291946

Author: l46kok

.bazelrc

@@ -1,7 +1,13 @@
 common --enable_bzlmod
 # Use built-in protoc
-common --incompatible_enable_proto_toolchain_resolution --@com_google_protobuf//bazel/toolchains:prefer_prebuilt_protoc
+common --incompatible_enable_proto_toolchain_resolution
+common --@com_google_protobuf//bazel/toolchains:prefer_prebuilt_protoc=true
 
+# Ensure that we don't accidentally build protobuf or gRPC
+common --per_file_copt=external/.*protobuf.*@--PROTOBUF_WAS_NOT_SUPPOSED_TO_BE_BUILT
+common --host_per_file_copt=external/.*protobuf.*@--PROTOBUF_WAS_NOT_SUPPOSED_TO_BE_BUILT
+common --per_file_copt=external/.*grpc.*@--GRPC_WAS_NOT_SUPPOSED_TO_BE_BUILT
+common --host_per_file_copt=external/.*grpc.*@--GRPC_WAS_NOT_SUPPOSED_TO_BE_BUILT
 build --java_runtime_version=remotejdk_11
 build --java_language_version=11
 

java_lite_proto_cel_library_impl.bzl

@@ -20,7 +20,7 @@ This is an implementation detail. Clients should use 'java_lite_proto_cel_librar
 load("@rules_java//java:defs.bzl", "java_library")
 load("//publish:cel_version.bzl", "CEL_VERSION")
 load("@com_google_protobuf//bazel:java_lite_proto_library.bzl", "java_lite_proto_library")
-load("@rules_proto//proto:defs.bzl", "ProtoInfo")
+load("@com_google_protobuf//bazel:proto_info.bzl", "ProtoInfo")
 
 def java_lite_proto_cel_library_impl(
         name,