Log Message:
net/exabgp: update to version 4.2.22.

Pkgsrc changes:
 * Remove now-integrated patch.
 * Update PLIST with new example files.
 * Change from egg.mk to wheel.mk for python, and fix associated
   PLIST entries.
 * Checksum updates.

This update is apparently needed if you try to use this
package with python 3.12.

Upstream changes:

Version 4.2.22
 * Fix: route reload for offline neighbors #1126
   patch: Malcolm Dodds
 * Fix: make sure we compare next-hop self and next-hop IP correctly (#1153)
   reported: gitneep
 * Compatibility: remove "not-a-fragment" "!is-fragment" \ 
should be used instead
 * Upgrade six to the latest version

Commit during freeze OK'ed by wiz@