Sirius Desktop 7.4.10rc1 for 2025-06 M3

Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>

Author: pcdavid

sirius.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" description="Eclipse Sirius" label="Sirius Desktop">
-  <repositories location="https://download.eclipse.org/sirius/updates/releases/7.4.9/2023-03/">
+  <repositories location="https://download.eclipse.org/sirius/updates/milestones/7.4.10rc1/2023-03/">
     <features name="org.eclipse.sirius.specifier.feature.group">
       <categories href="simrel.aggr#//@customCategories[identifier='Modeling']"/>
     </features>