Create a release package to enable adding pybind11_protobuf to Bazel Central Registry

Hi,
Could you please add a complete set of instructions on how to include and use with Bazel?

I added the following stanza to my WORKSPACE file:

git_repository(
    name = "pybind11_protobuf",
    branch = "main",
    remote = "https://github.com/pybind/pybind11_protobuf.git",
    strip_prefix = "pybind11_protobuf",
)

However, I cannot get the requirement for a com_google_protobuf dependency to work.
I believe the current practice would be to add this dep to MODULE.bazel:
https://registry.bazel.build/modules/protobuf/21.7

and then add this to the BUILD rule:
"@protobuf//:protos_python",

This however gives me this error:
no such package '@com_google_protobuf//': The repository '@com_google_protobuf' could not be resolved: Repository '@com_google_protobuf' is not defined and referenced by '@pybind11_protobuf//:native_proto_caster'

What's the correct way to get this to work?
(for future compatibility, I have filed a BCR request here https://github.com/bazelbuild/bazel-central-registry/issues/1121 )

Start by reviewing the current WORKSPACE stanza, the MODULE.bazel dependency configuration, and the BUILD rule referencing @com_google_protobuf. Compare those requirements with the linked Bazel Central Registry request. Done means a release package can be added to the BCR and the repository includes complete, working instructions for using it with Bazel.