Fix head dependency for macOS build

This commit ensures that the freetype dependency is only
included when building the head version on macOS.
Date:      Wed Nov 6 21:02:41 2024 -0800
Changes to be committed:
        modified:   Formula/c/cataclysm.rb

Formula/c/cataclysm.rb

@@ -39,6 +39,7 @@ class Cataclysm < Formula
 
   on_macos do
     depends_on "gettext"
+    depends_on "freetype" if build.head?
   end
 
   def install