chore(flake): update nixpkgs, home-manager, rust-overlay

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

flake.lock

@@ -28,11 +28,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782704057,
-        "narHash": "sha256-G1I1gd32F7mp9LAe1DaZ4ZL7NX5gyiKwdCMwro1Vrck=",
+        "lastModified": 1785119570,
+        "narHash": "sha256-Rgs2xKnGLFWQscxUaXX07oyZeuMDOHEbqDOsgliLFGM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "868d0a692de703c2de98fab61968e4e310b7c28e",
+        "rev": "d4fd24667c8cbef124bb70a20380cab75ec8474d",
         "type": "github"
       },
       "original": {
@@ -44,11 +44,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1782691344,
-        "narHash": "sha256-i5nw9BYYsMDAaOC4J+JmTof6b2GhlyH076awYRNrTV8=",
+        "lastModified": 1785858998,
+        "narHash": "sha256-fKCq5jphd6l/Ms6gc3dptkw/TcKLYub9lQE5g6rbbkc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1f01958ffb5b3545c96d9ef2f4e24c5e5e1eb846",
+        "rev": "04607e1165ac22c5fde6dcc54c9e0b3c0487c555",
         "type": "github"
       },
       "original": {
@@ -96,11 +96,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782875958,
-        "narHash": "sha256-5eqDcnBjb1424HRQdnhuhNOBZguq1Z2tqSa2OMF/m2c=",
+        "lastModified": 1785993740,
+        "narHash": "sha256-naSJ+p7zkIT2hHNSJkhxiPZlmVRgE3UdODinMM7rpD8=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "13139aefa973f3d96c60c0fbab801de058ae25ca",
+        "rev": "3d1b34a12a26be073f7ae67165a6b61229ca6025",
         "type": "github"
       },
       "original": {