implements three missing UpdateManager functions in the Python bindings:

1. apply_updates_and_restart_with_args - Applies updates and restarts the app with custom command-line arguments
2. apply_updates_and_exit - Applies updates and exits without restarting
3. wait_exit_then_apply_updates - Waits for the app to exit, then applies updates with configurable options for
   silent mode, restart behavior, and restart arguments

All functions handle converting Python's PyUpdateInfo to Rust's UpdateInfo type and delegate to the underlying
Rust implementation in src/lib-python/src/manager.rs:80-112.