[chore] flake.lock: update inputs

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2527da1ef492c495d5391f3bcf9c1dd9f4514e32' (2024-08-24)
  → 'github:NixOS/nixpkgs/ae2fc9e0e42caaf3f068c1bfdc11c71734125e06' (2024-08-28)
• Updated input 'nixvim':
    'github:nix-community/nixvim/4814147442cd3f12f8160ecad9e36751f68cdc22' (2024-08-27)
  → 'github:nix-community/nixvim/56208f9e3f46f034353636fa651df8663ec57fa3' (2024-08-30)
• Updated input 'nixvim/git-hooks':
    'github:cachix/git-hooks.nix/c8a54057aae480c56e28ef3e14e4960628ac495b' (2024-08-23)
  → 'github:cachix/git-hooks.nix/4509ca64f1084e73bc7a721b20c669a8d4c5ebe6' (2024-08-28)
• Updated input 'nixvim/treefmt-nix':
    'github:numtide/treefmt-nix/070f834771efa715f3e74cd8ab93ecc96fabc951' (2024-08-22)
  → 'github:numtide/treefmt-nix/3ffd842a5f50f435d3e603312eefa4790db46af5' (2024-08-28)
• Updated input 'unstable':
    'github:NixOS/nixpkgs/d0e1602ddde669d5beb01aec49d71a51937ed7be' (2024-08-24)
  → 'github:NixOS/nixpkgs/71e91c409d1e654808b2621f28a327acfdad8dc2' (2024-08-28)

flake.lock

@@ -350,11 +350,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1725001927,
-        "narHash": "sha256-eV+63gK0Mp7ygCR0Oy4yIYSNcum2VQwnZamHxYTNi+M=",
+        "lastModified": 1724855419,
+        "narHash": "sha256-WXHSyOF4nBX0cvHN3DfmEMcLOVdKH6tnMk9FQ8wTNRc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6e99f2a27d600612004fbd2c3282d614bfee6421",
+        "rev": "ae2fc9e0e42caaf3f068c1bfdc11c71734125e06",
         "type": "github"
       },
       "original": {
@@ -383,11 +383,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1725139609,
-        "narHash": "sha256-tjMrSaxGXC7JQkENchdPPxWv4gPbelPwSoPs5A5e0vU=",
+        "lastModified": 1725048799,
+        "narHash": "sha256-NaCb/odkjPjILD1XqXsr1Q7d0iIgf87m8ixGrowfC2A=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "caefb266bee301922a4cf4d4564b1b000a0a21c3",
+        "rev": "56208f9e3f46f034353636fa651df8663ec57fa3",
         "type": "github"
       },
       "original": {