v23/internal/test: Exclude tests to get golang net to pass.
v23/internal/test: Exclude tests to get golang net to pass.

I have a CL updating golang thirdparty net package. This change should
allow it to pass presubmit.

Change-Id: I1d35331738fca29f38ff41e94b4f5378caa36c81

vanadium/go.jiri,vanadium/go.jiri