Update nixpkgs and home-manager

This removes the need for the `eval "$shellHook"` in `.envrc`

flake.lock

@@ -136,11 +136,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1645244400,
-        "narHash": "sha256-o7KCd6ySFZ9/LbS62aTeuFmBWtP7Tt3Q3RcNjYgTgZU=",
+        "lastModified": 1650190514,
+        "narHash": "sha256-BoBvGT71yOfrNDTZQs7+FX0zb4yjMBETgIjtTsdJw+o=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "0232fe1b75e6d7864fd82b5c72f6646f87838fc3",
+        "rev": "620ed197f3624dafa5f42e61d5c043f39b8df366",
         "type": "github"
       },
       "original": {
@@ -180,11 +180,11 @@
     },
     "nixpkgs-mine": {
       "locked": {
-        "lastModified": 1648933481,
-        "narHash": "sha256-ziMZ55TOahiD9iO+YfBcAeCm2mT3wfmfZ73UTvuBHhg=",
+        "lastModified": 1650206447,
+        "narHash": "sha256-a4lsuGG0VDHiF19fF9Ig2BDJEXIRdrJ6+vKwPM6Xaso=",
         "owner": "devplayer0",
         "repo": "nixpkgs",
-        "rev": "5fd6f5662c320506aba548bb03cfd8f63dac2c1a",
+        "rev": "33465cb03e49a17203040e2e74c9a246824c572b",
         "type": "github"
       },
       "original": {