merge with main git using update_weblate_git.py.

wiki/src/contribute.ar.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.ca.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.id.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.pl.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.ru.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.sr_Latn.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.tr.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.zh.po: updating as wiki/src/contribute.de.po has changed.
wiki/src/contribute.zh_TW.po: updating as wiki/src/contribute.de.po has changed.