Merge pull request #7652 from gibfahn/cask_caveat_unsigned_accessibility

caveats: add an unsigned_accessibility caveat message

Library/Homebrew/cask/dsl/caveats.rb

@@ -58,6 +58,19 @@ module Cask
         EOS
       end
 
+      caveat :unsigned_accessibility do |access = "Accessibility"|
+        # access: the category in System Preferences -> Security & Privacy -> Privacy the app requires.
+
+        <<~EOS
+          #{@cask} is not signed and requires Accessibility access,
+          so you will need to re-grant Accessibility access every time the app is updated.
+
+          Enable or re-enable it in:
+            System Preferences → Security & Privacy → Privacy -> #{access}
+          To re-enable untick and retick #{@cask}.app.
+        EOS
+      end
+
       caveat :path_environment_variable do |path|
         <<~EOS
           To use #{@cask}, you may need to add the #{path} directory