Fix recursive set-keymap-parent in completions-highlight.

*
lisp/completions-highlight.el (completions-highlight-minibuffer-bindings)
:
(completions-highlight-completions-bindings) : Condition
set-keymap-parent to avoid error.
2 jobs for feature/completions-highlight-modifications in 73 minutes and 25 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #7719
test-all

01:13:25

passed #7720
test-gnustep

00:49:35