flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/3717a9f4981495d5487642554343acfacf4e64fa' (2024-07-27)
  → 'github:nix-community/fenix/930afdff0d11e60fa5956947513feb57463284af' (2024-09-10)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/5ad6a14c6bf098e98800b091668718c336effc95' (2024-07-25)
  → 'github:nixos/nixpkgs/574d1eac1c200690e27b8eb4e24887f8df7ac27c' (2024-09-06)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/aae54dde8c384acc310455504c9d8909646e0778' (2024-07-26)
  → 'github:rust-lang/rust-analyzer/e35227d186acd47d8e5f78cbd792d57ddf47d74b' (2024-09-09)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/205fd4226592cc83fd4c0885a3e4c9c400efabb5' (2024-07-09)
  → 'github:NixOS/nixpkgs/574d1eac1c200690e27b8eb4e24887f8df7ac27c' (2024-09-06)

Author: Defelo

flake.lock

@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     fenix.url = "github:nix-community/fenix";
     crate2nix.url = "github:nix-community/crate2nix";
   };