Reintroduce proto_compile_deps and grpc_compile_deps to rust_proto_toolchain

[UebelAndre]

@damienmg There is a TODO in proto/toolcahin.bzl

# TODO(damienmg): Once bazelbuild/bazel#6889 is fixed, reintroduce
# proto_compile_deps and grpc_compile_deps and remove them from the
# rust_proto_library and grpc_proto_library.
rust_proto_toolchain = rule(

The issue (bazelbuild/bazel#6889) looks closed now so is this something that should be done still?

[damienmg]

Probably yes.

[UebelAndre]

This also seems related to bazelbuild/bazel#11584