[#1230] Prepare releng for 2.9.0 release

Swtich baseline to 2.8.0

Signed-off-by: Nikifor Fedorov <[email protected]>

releng/org.eclipse.passage.target/org.eclipse.passage.baseline.target

@@ -19,7 +19,7 @@
 			<unit id="org.eclipse.license.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/eclipse/updates/4.26/R-4.26-202211231800/"/>
+			<repository location="https://download.eclipse.org/eclipse/updates/4.28/R-4.28-202306050440/"/>
 			<unit id="org.eclipse.equinox.executable.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.equinox.sdk.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.sdk.feature.group" version="0.0.0"/>
@@ -30,7 +30,7 @@
 			<unit id="org.eclipse.emfforms.setup.base" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/modeling/emf/emf/builds/release/2.32/"/>
+			<repository location="https://download.eclipse.org/modeling/emf/emf/builds/release/2.34/"/>
 			<unit id="org.eclipse.emf.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
@@ -42,11 +42,11 @@
 			<unit id="org.eclipse.emf.transaction.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/modeling/emf/validation/updates/releases/R202208271102/"/>
+			<repository location="https://download.eclipse.org/modeling/emf/validation/updates/releases/R202305230712/"/>
 			<unit id="org.eclipse.emf.validation.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/modeling/gmp/gmf-notation/updates/releases/R202211151334/"/>
+			<repository location="https://download.eclipse.org/modeling/gmp/gmf-notation/updates/releases/R202305230839/"/>
 			<unit id="org.eclipse.gmf.runtime.notation.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
@@ -69,12 +69,12 @@
 			<unit id="org.eclipse.passage.loc.operator.feature.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/sirius/updates/releases/7.0.6/2021-06/"/>
+			<repository location="https://download.eclipse.org/sirius/updates/releases/7.2.0/2023-03/"/>
 			<unit id="org.eclipse.sirius.runtime.aql.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.sirius.runtime.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/tools/gef/classic/releases/3.15.0/"/>
+			<repository location="https://download.eclipse.org/tools/gef/classic/releases/3.16.0/"/>
 			<unit id="org.eclipse.gef.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">