flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/219951b495fc2eac67b1456824cc1ec1fd2ee659' (2024-03-28)
  → 'github:NixOS/nixpkgs/1487bdea619e4a7a53a4590c475deabb5a9d1bfb' (2024-04-03)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/08b9151ed40350725eb40b1fe96b0b86304a654b' (2024-04-03)
  → 'github:NixOS/nixpkgs/fd281bd6b7d3e32ddfa399853946f782553163b5' (2024-04-03)
• Updated input 'nur':
    'github:nix-community/NUR/ded87e3d2f1ffbcb7505991f3b27f3436dafdc3e' (2024-04-04)
  → 'github:nix-community/NUR/3db12e68914428aa6711bfc8ab27fda2660832ff' (2024-04-04)

flake.lock

@@ -232,11 +232,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1711668574,
-        "narHash": "sha256-u1dfs0ASQIEr1icTVrsKwg2xToIpn7ZXxW3RHfHxshg=",
+        "lastModified": 1712168706,
+        "narHash": "sha256-XP24tOobf6GGElMd0ux90FEBalUtw6NkBSVh/RlA6ik=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "219951b495fc2eac67b1456824cc1ec1fd2ee659",
+        "rev": "1487bdea619e4a7a53a4590c475deabb5a9d1bfb",
         "type": "github"
       },
       "original": {
@@ -248,11 +248,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1712122226,
-        "narHash": "sha256-pmgwKs8Thu1WETMqCrWUm0CkN1nmCKX3b51+EXsAZyY=",
+        "lastModified": 1712163089,
+        "narHash": "sha256-Um+8kTIrC19vD4/lUCN9/cU9kcOsD1O1m+axJqQPyMM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "08b9151ed40350725eb40b1fe96b0b86304a654b",
+        "rev": "fd281bd6b7d3e32ddfa399853946f782553163b5",
         "type": "github"
       },
       "original": {
@@ -264,11 +264,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1712215405,
-        "narHash": "sha256-WqQKP0zifFgUIW1ZLEsyJTcfh0TojQjpnUZRQA7+W2A=",
+        "lastModified": 1712249469,
+        "narHash": "sha256-0dQqSn+c32scKFg3fCZDaoLuhw4C97bl3xWN/YB6Nxo=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "ded87e3d2f1ffbcb7505991f3b27f3436dafdc3e",
+        "rev": "3db12e68914428aa6711bfc8ab27fda2660832ff",
         "type": "github"
       },
       "original": {