Update rust version to 1.84.1

flake.lock

@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1726560853,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -44,11 +44,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1730831018,
-        "narHash": "sha256-2S0HwIFRxYp+afuoFORcZA9TjryAf512GmE0MTfEOPU=",
+        "lastModified": 1739863612,
+        "narHash": "sha256-UbtgxplOhFcyjBcNbTVO8+HUHAl/WXFDOb6LvqShiZo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8c4dc69b9732f6bbe826b5fbb32184987520ff26",
+        "rev": "632f04521e847173c54fa72973ec6c39a371211c",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1730860036,
-        "narHash": "sha256-u0sfA4B65Q9cRO3xpIkQ4nldB8isfdIb3rWtsnRZ+Iw=",
+        "lastModified": 1739932111,
+        "narHash": "sha256-WkayjH0vuGw0hx2gmjTUGFRvMKpM17gKcpL/U8EUUw0=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "b8eb3aeb21629cbe14968a5e3b1cbaefb0d1b260",
+        "rev": "75b2271c5c087d830684cd5462d4410219acc367",
         "type": "github"
       },
       "original": {

rust-toolchain.toml

@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.82.0"
+channel = "1.84.1"