chore(dotfiles): defer registry binding findings

src/dotfiles/registry.nix

@@ -9,6 +9,7 @@ let
     path: lib.nameValuePair (util.removeNixSuffix path) (mkRegistry path)
   );
 
+  # NOLINT(single_use_binding)
   mkRegistry =
     path:
     let

src/dotfiles/registry/schema.nix

@@ -1,5 +1,7 @@
 { lib }:
 let
+  # TODO: Add full Nix evaluation to single-use binding analysis.
+  # NOLINT(single_use_binding)
   checkType = lib.types.submodule {
     options = {
       assertion = lib.mkOption {