Update nix flake (#933)

rustc: 1.85.0 -> 1.87.0

flake.lock

@@ -19,11 +19,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1740872218,
-        "narHash": "sha256-ZaMw0pdoUKigLpv9HiNDH2Pjnosg7NBYMJlHTIsHEUo=",
+        "lastModified": 1749398372,
+        "narHash": "sha256-tYBdgS56eXYaWVW3fsnPQ/nFlgWi/Z2Ymhyu21zVM98=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "3876f6b87db82f33775b1ef5ea343986105db764",
+        "rev": "9305fe4e5c2a6fcf5ba6a3ff155720fbe4076569",
         "type": "github"
       },
       "original": {
@@ -34,11 +34,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1741010256,
-        "narHash": "sha256-WZNlK/KX7Sni0RyqLSqLPbK8k08Kq7H7RijPJbq9KHM=",
+        "lastModified": 1750506804,
+        "narHash": "sha256-VLFNc4egNjovYVxDGyBYTrvVCgDYgENp5bVi9fPTDYc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ba487dbc9d04e0634c64e3b1f0d25839a0a68246",
+        "rev": "4206c4cb56751df534751b058295ea61357bbbaa",
         "type": "github"
       },
       "original": {
@@ -50,14 +50,17 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1740872140,
-        "narHash": "sha256-3wHafybyRfpUCLoE8M+uPVZinImg3xX+Nm6gEfN3G8I=",
-        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/6d3702243441165a03f699f64416f635220f4f15.tar.gz"
+        "lastModified": 1748740939,
+        "narHash": "sha256-rQaysilft1aVMwF14xIdGS3sj1yHlI6oKQNBRTF40cc=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "656a64127e9d791a334452c6b6606d17539476e2",
+        "type": "github"
       },
       "original": {
-        "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/6d3702243441165a03f699f64416f635220f4f15.tar.gz"
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
       }
     },
     "root": {
@@ -75,11 +78,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1741141853,
-        "narHash": "sha256-FauVtC+FbOgkKpGVuQTNxSqrvgbmVc7hFkjn/DacwMo=",
+        "lastModified": 1750646674,
+        "narHash": "sha256-gHg6QUjMi1ObrocQUAoEhhbIfop14UNae4QDSHoKsRU=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "02edad1f19d6dec824e0812e4cdc0aa7930ff8ae",
+        "rev": "65162ae665154e0eddb395166bd4956358981dd0",
         "type": "github"
       },
       "original": {