Merge pull request #90 from sersorrel/nixpkgs-23.05

Bump nixpkgs stable link to 23.05

README.md

@@ -25,6 +25,6 @@ XIVLauncher Core has community packages for various Linux distributions. Please
 | [GURU (Gentoo)](https://gitweb.gentoo.org/repo/proj/guru.git/tree/games-util/xivlauncher) | ![GURU version](https://repology.org/badge/version-for-repo/gentoo_ovl_guru/xivlauncher.svg?header=guru) |
 | [MPR (Debian+Ubuntu)](https://mpr.makedeb.org/packages/xivlauncher)  | ![MPR package](https://repology.org/badge/version-for-repo/mpr/xivlauncher.svg?header=MPR) |
 | [MPR (git) (Debian+Ubuntu)](https://mpr.makedeb.org/packages/xivlauncher-git)  | ![MPR package](https://repology.org/badge/version-for-repo/mpr/xivlauncher.svg?header=MPR) |
-| [nixpkgs stable](https://search.nixos.org/packages?channel=22.11&from=0&size=50&sort=relevance&type=packages&query=xivlauncher) | ![nixpkgs stable version](https://repology.org/badge/version-for-repo/nix_stable_22_11/xivlauncher.svg?header=nixpkgs%2022.11) |
+| [nixpkgs stable](https://search.nixos.org/packages?channel=23.05&from=0&size=50&sort=relevance&type=packages&query=xivlauncher) | ![nixpkgs stable version](https://repology.org/badge/version-for-repo/nix_stable_23_05/xivlauncher.svg?header=nixpkgs%2023.05) |
 | [nixpkgs unstable](https://search.nixos.org/packages?channel=unstable&from=0&size=50&sort=relevance&type=packages&query=xivlauncher) | ![nixpkgs unstable version](https://repology.org/badge/version-for-repo/nix_unstable/xivlauncher.svg?header=nixpkgs%20unstable) |
 | [PPA (Ubuntu)](https://launchpad.net/~linneris/+archive/ubuntu/xivlauncher-core-stable) | ![PPA version](https://img.shields.io/static/v1?label=PPA&message=1.0.5&color=brightgreen) |