[ocl] 6.13.0RC1 for 2020-12

Signed-off-by: Ed Willink <ed@willink.me.uk>
diff --git a/ocl.aggrcon b/ocl.aggrcon
index 8bcd9a2..a446154 100644
--- a/ocl.aggrcon
+++ b/ocl.aggrcon
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="ASCII"?>
 <aggregator:Contribution xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:aggregator="http://www.eclipse.org/cbi/p2repo/2011/aggregator/1.1.0" label="OCL for 2020-12">
-  <repositories location="https://download.eclipse.org/modeling/mdt/ocl/updates/milestones/6.13.0/S202011251807" description="OCL">
+  <repositories location="https://download.eclipse.org/modeling/mdt/ocl/updates/milestones/6.13.0/S202011300641" description="OCL">
     <features name="org.eclipse.ocl.all.sdk.feature.group" versionRange="[5.13.0,5.14.0)">
       <categories href="simrel.aggr#//@customCategories[identifier='Modeling']"/>
       <categories href="simrel.aggr#//@customCategories[identifier='General%20Purpose%20Tools']"/>