fix fish shell integration when cancelling a command

Cancelling a command should not send `OSC 133;A` as that starts a new
line.

Fixes #10544

src/shell-integration/fish/vendor_conf.d/ghostty-shell-integration.fish

@@ -200,7 +200,7 @@ function __ghostty_setup --on-event fish_prompt -d "Setup ghostty integration"
     end
 
     # Setup prompt marking
-    function __ghostty_mark_prompt_start --on-event fish_prompt --on-event fish_cancel --on-event fish_posterror
+    function __ghostty_mark_prompt_start --on-event fish_prompt --on-event fish_posterror
         # If we never got the output end event, then we need to send it now.
         if test "$__ghostty_prompt_state" != prompt-start
             echo -en "\e]133;D\a"