Update flake deps

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "flake-utils": {
       "locked": {
-        "lastModified": 1619345332,
-        "narHash": "sha256-qHnQkEp1uklKTpx3MvKtY6xzgcqXDsz5nLilbbuL+3A=",
+        "lastModified": 1620759905,
+        "narHash": "sha256-WiyWawrgmyN0EdmiHyG2V+fqReiVi8bM9cRdMaKQOFg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "2ebf2558e5bf978c7fb8ea927dfaed8fefab2e28",
+        "rev": "b543720b25df6ffdfcf9227afafc5b8c1fabfae8",
         "type": "github"
       },
       "original": {
@@ -50,10 +50,10 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1619775165,
-        "narHash": "sha256-2qaBErjxuWpTIq6Yee5GJmhr84hmzBotLQ0ayg1VXg8=",
-        "path": "/nix/store/gs997rgx3pvdgcb54wd3fi9wbnznd9g4-source",
-        "rev": "849b29b4f76d66ec7aeeeed699b7e27ef3db7c02",
+        "lastModified": 1622059058,
+        "narHash": "sha256-t1/ZMtyxClVSfcV4Pt5C1YpkeJ/UwFF3oitLD7Ch/UA=",
+        "path": "/nix/store/2gam4i1fa1v19k3n5rc9vgvqac1c2xj5-source",
+        "rev": "84aa23742f6c72501f9cc209f29c438766f5352d",
         "type": "path"
       },
       "original": {
@@ -63,11 +63,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1620252427,
-        "narHash": "sha256-U1Q5QceuT4chJTJ1UOt7bZOn9Y2o5/7w27RISjqXoQw=",
+        "lastModified": 1622194753,
+        "narHash": "sha256-76qtvFp/vFEz46lz5iZMJ0mnsWQYmuGYlb0fHgKqqMg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "d3ba49889a76539ea0f7d7285b203e7f81326ded",
+        "rev": "540dccb2aeaffa9dc69bfdc41c55abd7ccc6baa3",
         "type": "github"
       },
       "original": {
@@ -106,11 +106,11 @@
         "nixpkgs": "nixpkgs_3"
       },
       "locked": {
-        "lastModified": 1620355527,
-        "narHash": "sha256-mUTnUODiAtxH83gbv7uuvCbqZ/BNkYYk/wa3MkwrskE=",
+        "lastModified": 1622257069,
+        "narHash": "sha256-+QVnS/es9JCRZXphoHL0fOIUhpGqB4/wreBsXWArVck=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "d8efe70dc561c4bea0b7bf440d36ce98c497e054",
+        "rev": "8aa5f93c0b665e5357af19c5631a3450bff4aba5",
         "type": "github"
       },
       "original": {