x11-wm/jwm: Update to 2.4.3

ChangeLog: https://joewing.net/projects/jwm/
New Features

• Mouse bindings are now configurable
• Added key bindings
• Added ~/.config/jwm/jwmrc as the new default location for per-user configuration
• Maximized windows once again have borders and can be resized
• The placement of window buttons is now configurable
• Restored automatic tray "autohide" functionality using autohide="on"
• Added support for CDATA to the XML parser
• Moved the group and list attributes to the TaskListStyle tag
• Added key bindings to resize a window from a specific corner or side
• Add Type tag to Group

Bug Fixes

• Don't SetDefaultCursor in AddClientToWindow
• Use pango to address font fixes
• Fix for large titles that are centered or right aligned
• Fix tooltip delay

Updated Translations

• Portuguese
• Portuguese Brazil
• Turkish
• Spanish
• Danish
• Lithuanian

Add UPDATING entry due to config changes.

PR: 267931
Reported by: john.grafton@runbox.com (maintainer)