graphics/pecl-imagick: Update/bump consumers
www/nextcloud, www/piwigo and www/wordpress had some custom logic to
select the pecl-imagick port based on the default ImageMagick version.
This is now obsolete with the removal of pecl-imagick-im7 and must be
removed. As this changes dependencies, also bump PORTREVISION in these
ports.
Other consumers of pecl-imagick don't need a bump because they only use
ImageMagick through the PHP API, they don't directly link any shared
libs.
PR: 268833
Approved by: portmgr (blanket)