Log Message:
xfce4-taskmanager: update to 1.5.5

Change log:

1.5.5 (2022-12-16)
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- Stick process view at the top in the absence of user action
- Get rid of GtkHeaderBar
- Translation Updates:
  Albanian, Basque, Belarusian, Bulgarian, Catalan, Chinese (China),
  Chinese (Taiwan), Czech, Danish, Dutch, Estonian, French, Galician,
  German, Greek, Hebrew, Indonesian, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Norwegian Bokm��l, Occitan (post 1500), Persian (Iran),
  Polish, Portuguese, Portuguese (Brazil), Russian, Serbian, Slovak,
  Spanish, Swedish, Telugu, Thai, Turkish, Ukrainian