tor-browser: update to 10.0.5.

This release updates Firefox to 78.5.0esr and updates Tor to 0.4.4.6.
This release includes important security updates to Firefox.

The full changelog since Tor Browser 10.0.4 (Desktop) is:

    Windows + OS X + Linux
        Update Firefox to 78.5.0esr
        Update Tor to 0.4.4.6
        Bug 40212: Add new default obfs4 bridge

(wiz)