update nixvim/flake.lock

nixos/nixvim/flake.lock

@@ -214,22 +214,6 @@
         "url": "https://github.com/NixOS/nixpkgs/archive/5daf0514482af3f97abaefc78a6606365c9108e2.tar.gz"
       }
     },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1722185531,
-        "narHash": "sha256-veKR07psFoJjINLC8RK4DiLniGGMgF3QMlS4tb74S6k=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "52ec9ac3b12395ad677e8b62106f0b98c1f8569d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixvim": {
       "inputs": {
         "devshell": "devshell",
@@ -238,7 +222,9 @@
         "git-hooks": "git-hooks",
         "home-manager": "home-manager",
         "nix-darwin": "nix-darwin",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
         "nuschtosSearch": "nuschtosSearch",
         "treefmt-nix": "treefmt-nix"
       },