Prepare switch to mozilla96

• #40769 (closed) (Rebase tor-browser patches to 96.0)
• tor-browser-build#40417 (closed) (Make the list of components updates for switch to mozilla96-based Fenix)
• tor-browser-build#40418 (closed) (Update components for switch to mozilla96-based Fenix)
• android-components#40074 (closed) (Rebase android-components patches for Fenix 96)
• fenix#40205 (closed) (Rebase Fenix patches to Fenix 96)
• # (Review developer notes for Firefox 96)
• # (Review GeckoView Changelog for gv96)
• # (Review closed mozilla96 bug)
• tor-browser-spec# (FF96 network audit)
• tor-browser-bundle-testsuite# (Update tests when switching to Fenix 96)