flake.nix: nix flake update

flake.lock

@@ -174,11 +174,11 @@
         "nixpkgs": "nixpkgs_8"
       },
       "locked": {
-        "lastModified": 1703949102,
-        "narHash": "sha256-2z0T4nFlsjKgwJk1Kir1g0vWfQEiTVQqxfKYQHUiA/A=",
+        "lastModified": 1704023988,
+        "narHash": "sha256-1dvNCL2tsWRQcLe1oIXafH3iyBitndzvCFW7i/Uhn9g=",
         "ref": "refs/heads/master",
-        "rev": "013ba41fc2b3082cb9dedc6b9385f4587694d8ae",
-        "revCount": 130,
+        "rev": "d03aedf8bc5129792ddd7d90dc112e14c32001fe",
+        "revCount": 132,
         "type": "git",
         "url": "https://gitlab.horizon-haskell.net/package-sets/horizon-advance"
       },
@@ -217,11 +217,11 @@
         "nixpkgs": "nixpkgs_6"
       },
       "locked": {
-        "lastModified": 1703882062,
-        "narHash": "sha256-iaJcVOg3em/Xm0mxjjD0ulKKisQM0WanMaPnZQPpAb8=",
+        "lastModified": 1703943488,
+        "narHash": "sha256-j02u4G7e4yEdJB0qei0A/n4E5nf4kkrCtOjYleKiNAQ=",
         "ref": "refs/heads/master",
-        "rev": "9d83aac59e90b63427f770f0490b9541a30c866f",
-        "revCount": 1248,
+        "rev": "246a254f8090cc856ebea385b4061d7687f5056d",
+        "revCount": 1252,
         "type": "git",
         "url": "https://gitlab.horizon-haskell.net/package-sets/horizon-core"
       },
@@ -578,11 +578,11 @@
     },
     "nixpkgs_6": {
       "locked": {
-        "lastModified": 1703438236,
-        "narHash": "sha256-aqVBq1u09yFhL7bj1/xyUeJjzr92fXVvQSSEx6AdB1M=",
+        "lastModified": 1703637592,
+        "narHash": "sha256-8MXjxU0RfFfzl57Zy3OfXCITS0qWDNLzlBAdwxGZwfY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "5f64a12a728902226210bf01d25ec6cbb9d9265b",
+        "rev": "cfc3698c31b1fb9cdcf10f36c9643460264d0ca8",
         "type": "github"
       },
       "original": {