sysutils/yank: Update to 1.3.0

* Update to 1.3.0
* Pass maintainetship to submitter
* Pet portfmt
* Change x11 option to CLIPBOARD option: CLIPBOARD is more descriptive.
* CLIPBOARD is enabled by default: users using this port will probably
  want to copy the selected entry to the clipboard.

Changes:	https://github.com/mptre/yank/blob/v1.3.0/CHANGELOG.md
PR:		270046