deskutils/gnome-pomodoro: downgrade to 0.22.1

gnome-pomodoro does not show the progress circle on the top bar with
gnome 42. The pomodoro extension throws the following error:

(gnome-shell:2088): Gjs-WARNING **: 12:38:50.102: JS ERROR: Extension pomodoro@arun.codito.in: ImportError: No JS module 'signals' found in search path

It appears gnome-pomodoro 0.23 is not compatible with gnome 42. So
downgrade to 0.22.

PR: 272070
Reported by: jako.andras@eik.bme.hu
MFH: 2023Q3