nixos: update to 25.05

Flake lock file updates:

• Updated input 'my-nixpkgs':
    'github:qaristote/my-nixpkgs/17d1586f41bfe944070f12bb2c82299ac1844de4' (2025-04-06)
  → 'github:qaristote/my-nixpkgs/54d7d2af835c30e961c9ce9596bb630d0c3b3955' (2025-06-22)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/bdb91860de2f719b57eef819b5617762f7120c70' (2025-04-03)
  → 'github:NixOS/nixpkgs/b2485d56967598da068b5a6946dadda8bfcbcd37' (2025-06-20)

1 files changed, 1 insertions, 1 deletions

diff --git a/flake.nix b/flake.nix
index 98a52a9..d553767 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,7 +5,7 @@
       inputs.nixpkgs.follows = "/nixpkgs";
     };
     my-nixpkgs.url = "github:qaristote/my-nixpkgs";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
   };
 
   outputs = {