matrix-synapse,mautrix-facebook: fix runtime inclusion of python3 systemd

[chvp]

Description of changes

#192197 broke these packages by adding systemd as a dependency. This meant that the included package was no longer the python3 systemd package, but the general systemd derivation. This broke the packages at runtime. This PR fixes that.

I also checked all other derivations touched by #192197, but these were the only were the systemd dependency was added erroneously.

Things done

Deployed this to my server and checked that it worked for matrix-synapse. I don't run mautrix-facebook, so I couldn't verify that.

• 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.

[chvp]

@ofborg test matrix-synapse

[SuperSandro2000]

I am wondering myself why this easy to spot mistake was not caught in review.

[ghost]

This was my fault, I screwed up. Thank you for cleaning up the mess.

I am wondering myself why this easy to spot mistake was not caught in review.

Because it's not easy to spot. The systemd there comes from a with python3.pkgs. Dynamic scoping (with) is fundamentally error prone. The with construct should be avoided when possible, and applied to small subexpressions (not entire derivations) elsewhere.

But crapping on reviewers here is not cool.