Update python-magic to 0.4.22

Summary: Changelog available here

Test Plan: - Check eopkg still works (including install, uninstall, reinstall, info and search, also building a third-party package)

Reviewers: Triage Team, JoshStrobl

Reviewed By: Triage Team, JoshStrobl

Subscribers: JoshStrobl

Differential Revision: https://dev.getsol.us/D10610