lang/php-mode.el: Update to 1.27.0

This update fixes byte-compile errors with Emacs 30.1. See
https://github.com/emacs-php/php-mode/pull/792 for details.

Upstream switched to building with Eask, so byte compile in a do-build
target.

Release-notes: https://github.com/emacs-php/php-mode/releases/tag/v1.27.0
Approved by: marc@bumblingdork.com (maintainer, timeout)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D48433