Fixed execution environment in target

Change-Id: I0ec01606536bb23e60e356a2917d9da12c6bdfd9
diff --git a/releng/org.eclipse.ecf.releng.target/ecf-2020-09.target b/releng/org.eclipse.ecf.releng.target/ecf-2020-09.target
index d5e41ae..24db022 100644
--- a/releng/org.eclipse.ecf.releng.target/ecf-2020-09.target
+++ b/releng/org.eclipse.ecf.releng.target/ecf-2020-09.target
@@ -51,4 +51,5 @@
 <repository location="http://download.eclipse.org/releases/2020-09"/>
 </location>
 </locations>
-</target>
+	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+</target>
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