thunderbird, thunderbird-bin: 68.10.0 -> 68.11.0, 78.1.0 -> 78.1.1 [High security fixes]

[taku0]

Motivation for this change

78.1.1:

• Bug fixes and changes.

https://www.thunderbird.net/en-US/thunderbird/78.1.1/releasenotes/

68.11.0:

• High security fixes
• Other fix

https://www.thunderbird.net/en-US/thunderbird/68.11.0/releasenotes/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-35/

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

Tested thunderbird-78, thunderbird-bin-78, and thunderbird-bin. I'm building thunderbird.

[mweinelt]

Result of nixpkgs-review pr 94863 1

4 packages built:

- thunderbird
- thunderbird-78
- thunderbird-bin
- thunderbird-bin-78

[ShamrockLee]

Result of nixpkgs-review pr 94863:

4 packages built:
thunderbird thunderbird-78 thunderbird-bin thunderbird-bin-78

Takes at least two hours to build.
Tested thunderbird 68.11.0 on NixOS. LGTM

[lovesegfault]

[mweinelt]

And thunderdbird-78 tested on x86_64 for a few hours. LGTM.

[vcunat]

I synchronized release-20.03 branch in e9bd19d – including filename changes to make also future backports easier.