[releng] Update to Sirius 6.4.0 official release

Change-Id: Id90e2c55845bdf59587142612bd7a872f1bb5d4d
Signed-off-by: Philippe DUL <philippe.dul@thalesgroup.com>
diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/capella.target b/releng/org.eclipse.amalgam.releng/target_platforms/capella.target
index 689e42c..83a6ff7 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/capella.target
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/capella.target
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>

 <?pde?>

 <!-- generated with https://github.com/eclipse-cbi/targetplatform-dsl -->

-<target name="capella" sequenceNumber="1600685895">

+<target name="capella" sequenceNumber="1600685896">

   <locations>

     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">

       <unit id="org.eclipse.platform.feature.group" version="0.0.0"/>

@@ -13,7 +13,7 @@
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">

       <unit id="org.eclipse.sirius.runtime.feature.group" version="0.0.0"/>

       <unit id="org.eclipse.sirius.runtime.ide.ui.feature.group" version="0.0.0"/>

-      <repository location="https://download.eclipse.org/sirius/updates/stable/6.4.0-S20200921-043506/2020-06"/>

+      <repository location="https://download.eclipse.org/sirius/updates/releases/6.4.0/2020-06"/>

     </location>

     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">

       <unit id="org.eclipse.license.feature.group" version="0.0.0"/>

diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/capella.targetplatform b/releng/org.eclipse.amalgam.releng/target_platforms/capella.targetplatform
index 83482c7..396c89d 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/capella.targetplatform
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/capella.targetplatform
@@ -7,7 +7,7 @@
 	org.junit lazy
 }
 
-location "https://download.eclipse.org/sirius/updates/stable/6.4.0-S20200921-043506/2020-06" {
+location "https://download.eclipse.org/sirius/updates/releases/6.4.0/2020-06" {
 	org.eclipse.sirius.runtime.feature.group lazy
 	org.eclipse.sirius.runtime.ide.ui.feature.group lazy
 }