Update flake inputs

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "emacs-overlay": {
       "locked": {
-        "lastModified": 1647940792,
-        "narHash": "sha256-5pofvgMncMId9pWU2sGSNlByn/jwqvOAHcKoZcAiHFo=",
+        "lastModified": 1651640396,
+        "narHash": "sha256-QzqsqK9s/PYMgcUrQUqeKNv/9X5nvnQfX/h2v1fH65Q=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "6d9fd817e8f2606df8a5afc138b840c9dc7184f3",
+        "rev": "43b4c2b4eaa3893266661e31bfc87e9915bebeef",
         "type": "github"
       },
       "original": {
@@ -17,11 +17,11 @@
     },
     "flake-utils": {
       "locked": {
-        "lastModified": 1644229661,
-        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "lastModified": 1649676176,
+        "narHash": "sha256-OWKJratjt2RW151VUlJPRALb7OU2S5s+f0vLj4o1bHM=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "rev": "a4b154ebbdc88c8498a5c7b01589addc9e9cb678",
         "type": "github"
       },
       "original": {
@@ -32,11 +32,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1647800324,
-        "narHash": "sha256-rjwoxrk16zfrcO5Torh6CbAd5GHsHrXw+EwxOvh9AUI=",
+        "lastModified": 1651558728,
+        "narHash": "sha256-8HzyRnWlgZluUrVFNOfZAOlA1fghpOSezXvxhalGMUo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9bc841fec1c0e8b9772afa29f934d2c7ce57da8e",
+        "rev": "cbe587c735b734405f56803e267820ee1559e6c1",
         "type": "github"
       },
       "original": {