feat: use latest treefmt release for formatting repo

Signed-off-by: Brian McGee <[email protected]>

Author: brianmcgee

Diff for: nix/formatter.nix

@@ -7,8 +7,6 @@
 inputs.treefmt-nix.lib.mkWrapper pkgs {
   projectRootFile = "flake.nix";
 
-  package = perSystem.self.treefmt;
-
   programs = {
     alejandra.enable = true;
     deadnix.enable = true;