Changes

Update build configuration for RAP Runtime 3.21.0 M1

- Use Eclipse Platform 4.24 I20220407-0240 (M1)
- Use Eclipse Jetty 10.0.9
- Use Eclipse Orbit 2022-06

Also remove all javax.xml dependencies from the Equinox features and the
launch configurations. The javax.xml bundle has been removed from Orbit,
and the Java package it used to provide should be part of recent JRE
versions.

Change-Id: I59136fba7f414ee4d71d24f8b21e7ed20b5688c5
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>