[email protected]: disable

Only `bond` uses gch 8.6, and `bond` has been disabled on 06-09-2023.

Author: iMichka

Formula/g/[email protected]

@@ -21,7 +21,7 @@ class GhcAT86 < Formula
 
   keg_only :versioned_formula
 
-  deprecate! date: "2022-12-10", because: :unmaintained
+  disable! date: "2023-09-10", because: :unmaintained
 
   depends_on "[email protected]" => :build
   depends_on arch: :x86_64