libprotobuf.so not generated when building :protobuf target with bazel.

[TheRealJagwire]

What version of protobuf and what language are you using?
Version: latest from main branch
Language: C++

What operating system (Linux, Windows, ...) and version?
WSL2 on Windows 11 Enterprise
What runtime / compiler are you using (e.g., python version or gcc version)
bazel 7.1.1

What did you do?
Steps to reproduce the behavior:

1. sudo apt-get install g++ git bazel
2. git clone https://github.com/protocolbuffers/protobuf.git .
3. bazel build :protobuf

What did you expect to see
libraries of some sort in the bazel-bin directory

What did you see instead?
three directories: external, src, and third_party

Make sure you include information that can help us debug (full error message, exception listing, stack trace, logs).

Anything else we should know about your project / environment
I'm just trying to get the protobuf runtime libraries built from source.