merge with main git using merge_canonical_changes.py.

wiki/src/doc/upgrade.ar.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.ca.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.fa.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.id.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.pl.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.sr_Latn.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.tr.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.zh.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/doc/upgrade.zh_TW.po: updating as wiki/src/doc/upgrade.de.po has changed.
wiki/src/install/expert/usb.ar.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.ca.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.fa.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.id.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.pl.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.sr_Latn.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.tr.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.zh.po: updating as wiki/src/install/expert/usb.de.po has changed.
wiki/src/install/expert/usb.zh_TW.po: updating as wiki/src/install/expert/usb.de.po has changed.