niv home-manager: update 1d085ea4 -> 23ff9821

## Changelog for home-manager:
Branch: master
Commits: [nix-community/home-manager@1d085ea4...23ff9821](nix-community/home-manager@1d085ea...23ff982)

* [`ecfffe36`](nix-community/home-manager@ecfffe3) river: fix systemd activation ([nix-community/home-manager⁠#5055](https://togithub.com/nix-community/home-manager/issues/5055))
* [`2f336776`](nix-community/home-manager@2f33677) Translate using Weblate (Portuguese (Brazil))
* [`0992b38e`](nix-community/home-manager@0992b38) tests: add mkStubPackage in Nixpkgs overlay
* [`4de84265`](nix-community/home-manager@4de8426) fcitx5: fix tests
* [`d579633f`](nix-community/home-manager@d579633) khal: fix contact integration ([nix-community/home-manager⁠#4836](https://togithub.com/nix-community/home-manager/issues/4836))
* [`23ff9821`](nix-community/home-manager@23ff982) ci: bump DeterminateSystems/update-flake-lock from 20 to 21

nix/sources.json

@@ -53,10 +53,10 @@
  "homepage": "https://nix-community.github.io/home-manager/",
  "owner": "nix-community",
  "repo": "home-manager",
- "rev": "1d085ea4444d26aa52297758b333b449b2aa6fca",
- "sha256": "0v2idasyxh8rsp4lkaph77ivc3ffwi8k2gk9h6rxvd5qxrfznb24",
+ "rev": "23ff9821bcaec12981e32049e8687f25f11e5ef3",
+ "sha256": "1xnpif3nsi9s4dxxcakax7xjw6pjyc6k79hw2s01jg1nww7plpw4",
  "type": "tarball",
- "url": "https://github.com/nix-community/home-manager/archive/1d085ea4444d26aa52297758b333b449b2aa6fca.tar.gz",
+ "url": "https://github.com/nix-community/home-manager/archive/23ff9821bcaec12981e32049e8687f25f11e5ef3.tar.gz",
  "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
  },
  "hs-grille": {