bump nixpkgs

nixpkgs.json

 {
   "name": "source",
-  "url": "https://releases.nixos.org/nixos/24.05/nixos-24.05.2780.53e81e790209/nixexprs.tar.xz",
-  "sha256": "1h593fbz4dc54ns4n2v6v4w03m6m1vm595c1nynwq720zvfpbfq1"
+  "url": "https://releases.nixos.org/nixos/24.05/nixos-24.05.3164.63d37ccd2d17/nixexprs.tar.xz",
+  "sha256": "15h24svw7l3myjqbf8zqyfpvxsrss2k3xb6pxg28v94vq2x8qq0w"
 }
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