x11-wm/pekwm: update to 0.3.0

ChangeLog: https://github.com/pekwm/pekwm/releases/tag/release-0.3.0

• Pango font support (both Cairo and Xft)
• Automatic font type selection
• Various updated and improvements to pekwm_panel including a systray widget
• Xresources can be used in themes and configuration files as variables.
• New default theme named Winter

PR: 269281
Reported by: natbsd@instinctive.eu (maintainer)