signal-desktop: 5.37.0 -> 5.38.0

[teutat3s]

Description of changes

Bump signal-desktop version to 5.38.0
This includes an updated version in the bundled version of electron (17.3.1), which fixes a regression. It should no longer segfault on wayland.
signalapp/Signal-Desktop@a8962c7
https://github.com/electron/electron/releases/tag/v17.3.1
electron/electron#33499
#158175

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 22.05 Release Notes (or backporting 21.11 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
  • (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• Fits CONTRIBUTING.md.

[klDen]

Result of nixpkgs-review pr 167769 run on x86_64-linux 1

1 package built:

• signal-desktop

[klDen]

LGTM

[teutat3s]

@lovesegfault could you add the backport to release-21.11 label here, too? Thank you!

[github-actions]

Successfully created backport PR #168139 for release-21.11.