feat: update CI to use a new nix version

Author: blaggacao

.github/workflows/flakehub-publish-tagged.yml

@@ -19,7 +19,6 @@ jobs:
       - uses: "actions/checkout@v3"
         with:
           ref: "${{ (inputs.tag != null) && format('refs/tags/{0}', inputs.tag) || '' }}"
-      - uses: "nixbuild/nix-quick-install-action@v32"
       - uses: "DeterminateSystems/flakehub-push@main"
         with:
           visibility: "public"

flake.nix

@@ -70,7 +70,7 @@
       inherit (fwlib') blockTypes actions dataWith flakeModule grow growOn findTargets;
     };
   in
-    assert inputs.nixpkgs.lib.assertMsg ((builtins.compareVersions builtins.nixVersion "2.18") >= 0) "The truth is: you'll need a newer nix version to use Standard (minimum: v2.18).";
+    assert inputs.nixpkgs.lib.assertMsg ((builtins.compareVersions builtins.nixVersion "2.23") >= 0) "The truth is: you'll need a newer nix version to use Standard (minimum: v2.23).";
       (import ./dogfood.nix (inputs
         // {
           std = std // {inherit (inputs.self) narHash;};