Use final release URL of Eclipse Platform

Change-Id: Ib5a86726cfb770ede3f9018a5e26aaa62c3f84e5
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>
diff --git a/releng/org.eclipse.rap.tools.build/target.definition/org.eclipse.rap.tools.target.definition.target b/releng/org.eclipse.rap.tools.build/target.definition/org.eclipse.rap.tools.target.definition.target
index eee3e41..ebea593 100644
--- a/releng/org.eclipse.rap.tools.build/target.definition/org.eclipse.rap.tools.target.definition.target
+++ b/releng/org.eclipse.rap.tools.build/target.definition/org.eclipse.rap.tools.target.definition.target
@@ -7,7 +7,7 @@
 			<unit id="org.eclipse.license.feature.group" version="2.0.2.v20181016-2210"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="slicer" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/eclipse/updates/4.20-I-builds/I20210611-1600/"/>
+			<repository location="https://download.eclipse.org/eclipse/updates/4.20/R-4.20-202106111600/"/>
 			<unit id="org.eclipse.core.runtime.feature.feature.group" version="1.2.1300.v20210602-1312"/>
 			<unit id="org.eclipse.e4.rcp.feature.group" version="4.20.0.v20210602-2209"/>
 			<unit id="org.eclipse.ecf.core.feature.feature.group" version="1.5.702.v20210409-2301"/>