nixos: upgrade to 25.05

Flake lock file updates:

• Updated input 'my-nixpkgs':
    'github:qaristote/my-nixpkgs/8192328adf09e6a46958865e26f64cefaa506aff' (2025-05-28)
  → 'github:qaristote/my-nixpkgs/54d7d2af835c30e961c9ce9596bb630d0c3b3955' (2025-06-22)
• Updated input 'nixos-hardware':
    'github:NixOS/nixos-hardware/4602f7e1d3f197b3cb540d5accf5669121629628' (2025-06-06)
  → 'github:NixOS/nixos-hardware/1552a9f4513f3f0ceedcf90320e48d3d47165712' (2025-06-20)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/ed29f002b6d6e5e7e32590deb065c34a31dc3e91' (2025-06-06)
  → 'github:NixOS/nixpkgs/b2485d56967598da068b5a6946dadda8bfcbcd37' (2025-06-20)

1 files changed, 1 insertions, 1 deletions

diff --git a/flake.nix b/flake.nix
index 6ed2317..c8d3cf9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   inputs = {
     my-nixpkgs.url = "github:qaristote/my-nixpkgs";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
   };
 
   outputs = {