Update Nix flake.lock and x86_64-linux hash

nix/hashes.json

@@ -1,6 +1,6 @@
 {
   "nodeModules": {
-    "x86_64-linux": "sha256-UCPTTk4b7d2bets7KgCeYBHWAUwUAPUyKm+xDYkSexE=",
+    "x86_64-linux": "sha256-x6A/XT1i3bjakfAj0A1wV4n2s9rpflMDceTeppdP6tE=",
     "aarch64-darwin": "sha256-Y3o6lovahSWoG9un/l1qxu7hCmIlZXm2LxOLKNiPQfQ="
   }
 }