Upgrade Tor Browser to 11.0.6-build1

Closes #18799

See merge request tails/tails!724

Fixes regression introduced with the obfs4proxy 0.0.12 final release:
tails/tails!724 (comment 183582)

I suspect @boyska has the equivalent of 002bd2de
locally but did not push it since the doc does not instruct to do so.

refs tails/sysadmin#17887

Currently translated at 36.8% (14 of 38 strings)

Currently translated at 95.3% (123 of 129 strings)

Currently translated at 16.6% (3 of 18 strings)

Upgrade to Thunderbird 91

Closes #18069

See merge request tails/tails!720

Resolve "Tests for backup are fragile"

Closes #18727

See merge request tails/tails!706

refs #18069

wiki/src/doc/anonymous_internet/tor.ar.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.ca.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.fa.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.id.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.pl.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.sr_Latn.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.tr.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.zh.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.
wiki/src/doc/anonymous_internet/tor.zh_TW.po: updating as wiki/src/doc/anonymous_internet/tor.de.po has changed.

Currently translated at 100.0% (78 of 78 strings)

Translation: Tails/wiki/src/doc/anonymous_internet/tor.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcdocanonymous_internettorpo/it/

Currently translated at 60.0% (6 of 10 strings)

Translation: Tails/wiki/src/install/inc/steps/basic_troubleshooting.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepsbasic_troubleshootinginlinepo/it/

Currently translated at 95.2% (20 of 21 strings)

Translation: Tails/wiki/src/install/inc/steps/windows_boot_menu.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepswindows_boot_menuinlinepo/it/

Currently translated at 87.5% (7 of 8 strings)

Translation: Tails/wiki/src/install/inc/steps/install_etcher_in_windows.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepsinstall_etcher_in_windowsinlinepo/it/

Currently translated at 100.0% (47 of 47 strings)

Translation: Tails/wiki/src/install/inc/steps/install_etcher_in_mac.inline.*.po
Translate-URL: https://translate.tails.boum.org/projects/tails/wikisrcinstallincstepsinstall_etcher_in_macinlinepo/it/