fix(console): reset console locks after fork

[PakitoSec]

Summary

• register an after_in_child fork hook that rebuilds Rich console locks so forked children do not inherit a permanently locked console state
• export reset_console_after_fork from the public package API and cover the regression with a fork-specific multiprocessing test
• bump the package version to 0.9.3 in project metadata and lockfile

Testing

• updated tests/test_mp.py with a forked-child regression test that verifies logging in the child does not deadlock