mailcatcher: 0.7.1 -> 1.0.0.beta1

[thenonameguy]

Fixes #96908

Switching to fork that uses async library, this fixes darwin builds. sj26/mailcatcher#467

Description of changes

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/)
• 23.05 Release Notes (or backporting 22.11 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.

[zarelit]

@thenonameguy problem is that the PR used is not even mergeable upstream at the moment because it has conflicts left from a year ago

[thenonameguy]

I am aware, but for my development purposes this solves the problem.
I would be happy to have a separate derivation in nixpkgs as a secondary solution. mailcatcher-async maybe?

[zarelit]

@thenonameguy I think this can be closed. Mailcatcher is working again on darwin (both x86_64 and aarch64) and the async version adds nothing to the user except not being dependent from eventmachine.

The async version will eventually land in mailcatcher upstream (according to author: sj26/mailcatcher#546 (comment) ) but in the meantime you can publish this derivation in NUR or as a flake.