[chore] flake.lock: update inputs

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/dba414932936fde69f0606b4f1d87c5bc0003ede' (2024-11-06)
  → 'github:NixOS/nixpkgs/83fb6c028368e465cd19bb127b86f971a5e41ebc' (2024-11-07)
• Updated input 'nixvim':
    'github:nix-community/nixvim/aabbd60633947baba11db44df84f402edc241440' (2024-11-07)
  → 'github:nix-community/nixvim/57068f532d5d42601fd74e2b531204fe1cd3a8f2' (2024-11-10)
• Updated input 'unstable':
    'github:NixOS/nixpkgs/4aa36568d413aca0ea84a1684d2d46f55dbabad7' (2024-11-05)
  → 'github:NixOS/nixpkgs/76612b17c0ce71689921ca12d9ffdc9c23ce40b2' (2024-11-09)

flake.lock

@@ -294,11 +294,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1731155487,
-        "narHash": "sha256-+D57j7BcV5O3XH9za3c3XXVLHr+F+enThAN2EeF6H/M=",
+        "lastModified": 1731281996,
+        "narHash": "sha256-xdNFY/wcs8i9qluVbTAVh5JLlhI/r4JJfXb0yfEj1Ks=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "31364af1990067d5529846a2ebf17a42c5ab22ff",
+        "rev": "57068f532d5d42601fd74e2b531204fe1cd3a8f2",
         "type": "github"
       },
       "original": {
@@ -390,11 +390,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1730785428,
-        "narHash": "sha256-Zwl8YgTVJTEum+L+0zVAWvXAGbWAuXHax3KzuejaDyo=",
+        "lastModified": 1731139594,
+        "narHash": "sha256-IigrKK3vYRpUu+HEjPL/phrfh7Ox881er1UEsZvw9Q4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4aa36568d413aca0ea84a1684d2d46f55dbabad7",
+        "rev": "76612b17c0ce71689921ca12d9ffdc9c23ce40b2",
         "type": "github"
       },
       "original": {