[chore] flake.lock: update inputs

Flake lock file updates:

• Updated input 'nixvim':
    'github:nix-community/nixvim/a20fbbc4b9665ec215e7bea061a1d64f6fd652ce' (2024-10-27)
  → 'github:nix-community/nixvim/a4c3ad01cd0755dd1e93473d74efdd89a1cf5999' (2024-10-28)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/bae131e525cc8718da22fbeb8d8c7c43c4ea502a' (2024-10-27)
  → 'github:numtide/treefmt-nix/9ef337e492a5555d8e17a51c911ff1f02635be15' (2024-10-28)

flake.lock

@@ -260,11 +260,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1730137625,
-        "narHash": "sha256-9z8oOgFZiaguj+bbi3k4QhAD6JabWrnv7fscC/mt0KE=",
+        "lastModified": 1729973466,
+        "narHash": "sha256-knnVBGfTCZlQgxY1SgH0vn2OyehH9ykfF8geZgS95bk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "64b80bfb316b57cdb8919a9110ef63393d74382a",
+        "rev": "cd3e8833d70618c4eea8df06f95b364b016d4950",
         "type": "github"
       },
       "original": {
@@ -294,11 +294,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1730214386,
-        "narHash": "sha256-FNXiFunXR2DnNrjmA0ofLznTTHcEDJjNWvCQtQExtL0=",
+        "lastModified": 1730150629,
+        "narHash": "sha256-5afcjZhCy5EcCdNGKTPoUdywm2yppTSf7GwX/2Rq6Ig=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "7d882356a486cf44b7fab842ac26885ecd985af3",
+        "rev": "a4c3ad01cd0755dd1e93473d74efdd89a1cf5999",
         "type": "github"
       },
       "original": {