Bump version to v0.2.2, use slog_term for logging
Only big changes are adding slog_term for logging and upgrading libgit2.
Major
- gitpatcher-bin: Use slog_term for logging
- refactor: Upgrade git2 to version 0.18
- Corresponding upgrade of libgit2 from v0.6.4 to v0.7.1
Minor:
- fix: don't accidentally delete last character in commit message bodies
- refactor: Use camino for consistent UTF8 paths