Bug 577442 - POM and product version change for 4.23 release

Change-Id: I6a1f0aa0a92ddfd267ad99e23e141c332e3db43b
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform/+/188133
12 files changed