[chore] flake.lock: update inputs

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2527da1ef492c495d5391f3bcf9c1dd9f4514e32' (2024-08-24)
  → 'github:NixOS/nixpkgs/36bae45077667aff5720e5b3f1a5458f51cf0776' (2024-08-27)
• Updated input 'nixvim':
    'github:nix-community/nixvim/4814147442cd3f12f8160ecad9e36751f68cdc22' (2024-08-27)
  → 'github:nix-community/nixvim/2704133fe3ca616b22ed6685cc67180456eb4160' (2024-08-29)
• 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

@@ -240,11 +240,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1724440431,
-        "narHash": "sha256-9etXEOUtzeMgqg1u0wp+EdwG7RpmrAZ2yX516bMj2aE=",
+        "lastModified": 1724857454,
+        "narHash": "sha256-Qyl9Q4QMTLZnnBb/8OuQ9LSkzWjBU1T5l5zIzTxkkhk=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "c8a54057aae480c56e28ef3e14e4960628ac495b",
+        "rev": "4509ca64f1084e73bc7a721b20c669a8d4c5ebe6",
         "type": "github"
       },
       "original": {
@@ -383,11 +383,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1724820329,
-        "narHash": "sha256-jXaDebjRjcUgZcMNXkvA99s/tTUvZfLLJxLwf1e/qwE=",
+        "lastModified": 1724968633,
+        "narHash": "sha256-eb2NCdLwfXL1MuTAkoDncSl2lCJwyylV5/NM1Ws2P/U=",
         "owner": "nix-community",
         "repo": "nixvim",
-        "rev": "70e9532ec290769e4d671747b0f65b1c29a3c14e",
+        "rev": "2704133fe3ca616b22ed6685cc67180456eb4160",
         "type": "github"
       },
       "original": {
@@ -487,11 +487,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1724338379,
-        "narHash": "sha256-kKJtaiU5Ou+e/0Qs7SICXF22DLx4V/WhG1P6+k4yeOE=",
+        "lastModified": 1724833132,
+        "narHash": "sha256-F4djBvyNRAXGusJiNYInqR6zIMI3rvlp6WiKwsRISos=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "070f834771efa715f3e74cd8ab93ecc96fabc951",
+        "rev": "3ffd842a5f50f435d3e603312eefa4790db46af5",
         "type": "github"
       },
       "original": {
@@ -502,11 +502,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1724479785,
-        "narHash": "sha256-pP3Azj5d6M5nmG68Fu4JqZmdGt4S4vqI5f8te+E/FTw=",
+        "lastModified": 1724819573,
+        "narHash": "sha256-GnR7/ibgIH1vhoy8cYdmXE6iyZqKqFxQSVkFgosBh6w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d0e1602ddde669d5beb01aec49d71a51937ed7be",
+        "rev": "71e91c409d1e654808b2621f28a327acfdad8dc2",
         "type": "github"
       },
       "original": {

nvim/plugins.nix

@@ -143,8 +143,9 @@ in
     # FIXME: doesn't include formatters
     conform-nvim = {
       enable = true;
+      settings = {
         formatters.nixfmt.command = "${lib.getExe pkgs.nixfmt-rfc-style}";
-      formattersByFt = {
+        formatters_by_ft = {
           "_" = [ "trim_whitespace" ];
           c = [ "clang_format" ];
           cpp = [ "clang_format" ];
@@ -157,6 +158,7 @@ in
           zig = [ "zigfmt" ];
         };
       };
+    };
     gitsigns.enable = true;
     lint = {
       enable = true;