bump: :ui vc-gutter

dgutov/diff-hl@11f3113e79 -> dgutov/diff-hl@f66345ed1f

- Our diff-hl-update-async hack is no longer needed. The issue was
  addressed upstream.

Amend: 778fc9ad3f
Ref: dgutov/diff-hl#213
Ref: dgutov/diff-hl@e264d13a3d

modules/ui/vc-gutter/config.el

@@ -104,16 +104,6 @@
     (add-hook 'magit-pre-refresh-hook  #'diff-hl-magit-pre-refresh)
     (add-hook 'magit-post-refresh-hook #'diff-hl-magit-post-refresh))
 
-  ;; FIX: Fixes dgutov/diff-hl#213, where `diff-hl-update-async' stops
-  ;;   with-editor (and by extension, Magit COMMIT_EDITMSG buffers) buffers from
-  ;;   getting properly cleaned up.
-  (defadvice! +vc-gutter--inhibit-async-update-in-with-editor-a (fn &rest args)
-    :around #'diff-hl-update
-    (let ((diff-hl-update-async
-           (unless (bound-and-true-p with-editor-mode)
-             diff-hl-update-async)))
-      (apply fn args)))
-
   ;; FIX: The revert popup consumes 50% of the frame, whether or not you're
   ;;   reverting 2 lines or 20. This resizes the popup to match its contents.
   (defadvice! +vc-gutter--shrink-popup-a (fn &rest args)

modules/ui/vc-gutter/packages.el

@@ -1,4 +1,4 @@
 ;; -*- no-byte-compile: t; -*-
 ;;; ui/vc-gutter/packages.el
 
-(package! diff-hl :pin "11f3113e790526d5ee00f61f8e7cd0d01e323b2e")
+(package! diff-hl :pin "f66345ed1f174e844ce43d8225613b7b0fc3e253")