Log Message:
devel/php-memcache: update to 8.2

pkgsrc change: enable php84.

8.0.1 (2022-07-29)

* includes a fix for a possible memory corruption during flush , thanks
  @vnsavage

8.2 (2023-04-30)

* Added support for PHP 8.2.x
* Removed Google Cloud Builds and switched to Github actions (thx to
  @pmurzakov)
* Thanks to @remicollet & @pmurzakov & @shyim & @thesource93 & \ 
@vnsavage for
  contributions!