Update flake.lock

flake.lock

@@ -221,24 +221,6 @@
         "type": "github"
       }
     },
-    "nh": {
-      "inputs": {
-        "nixpkgs": "nixpkgs_3"
-      },
-      "locked": {
-        "lastModified": 1753472426,
-        "narHash": "sha256-9jfBJfSOdDyHf37vz3NM2LSsRZOQUdpCqBDJZUMqMY0=",
-        "owner": "nix-community",
-        "repo": "nh",
-        "rev": "00fefbace04d0af7282afbb1f4763b4354a81871",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nh",
-        "type": "github"
-      }
-    },
     "nixos-hardware": {
       "locked": {
         "lastModified": 1753122741,
@@ -335,22 +317,6 @@
       }
     },
     "nixpkgs_4": {
-      "locked": {
-        "lastModified": 1753345091,
-        "narHash": "sha256-CdX2Rtvp5I8HGu9swBmYuq+ILwRxpXdJwlpg8jvN4tU=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "3ff0e34b1383648053bba8ed03f201d3466f90c9",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-25.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_5": {
       "locked": {
         "lastModified": 1753399495,
         "narHash": "sha256-7XG/QBqhrYOyA2houjRTL2NMa7IKZZ/somBqr+Q/6Wo=",
@@ -366,7 +332,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_6": {
+    "nixpkgs_5": {
       "locked": {
         "lastModified": 1744868846,
         "narHash": "sha256-5RJTdUHDmj12Qsv7XOhuospjAjATNiTMElplWnJE9Hs=",
@@ -385,7 +351,7 @@
     "nixvim": {
       "inputs": {
         "flake-parts": "flake-parts_2",
-        "nixpkgs": "nixpkgs_5",
+        "nixpkgs": "nixpkgs_4",
         "nuschtosSearch": "nuschtosSearch",
         "systems": "systems_3"
       },
@@ -457,9 +423,8 @@
         "deploy-rs": "deploy-rs",
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
-        "nh": "nh",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs_4",
+        "nixpkgs": "nixpkgs_3",
         "nixpkgs-pr-feishin": "nixpkgs-pr-feishin",
         "nixpkgs-pr-fluffychat": "nixpkgs-pr-fluffychat",
         "nixvim": "nixvim",
@@ -507,7 +472,7 @@
     },
     "sops-nix": {
       "inputs": {
-        "nixpkgs": "nixpkgs_6"
+        "nixpkgs": "nixpkgs_5"
       },
       "locked": {
         "lastModified": 1752544651,