Bug 573960 - POM and product version change for 4.21 release Change-Id: I91f4d83279e8bc2a5d953ace6749d053985dfd2d Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com> Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.common/+/181378