Pin dependencies to released items for 2025-09 RC2 (#1292)

Author: jonahgraham

releng/org.eclipse.cdt.target/cdt.target

@@ -7,7 +7,7 @@
 			<unit id="org.eclipse.license.feature.group" version="0.0.0" />
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/eclipse/updates/4.37-I-builds/" />
+			<repository location="https://download.eclipse.org/eclipse/updates/4.37-I-builds/I20250828-0630/" />
 			<unit id="org.eclipse.equinox.executable.feature.group" version="0.0.0" />
 			<unit id="org.eclipse.jdt.annotation" version="0.0.0" />
 			<unit id="org.eclipse.sdk.feature.group" version="0.0.0" />
@@ -19,11 +19,11 @@
 			<repository location="https://download.eclipse.org/mylyn/updates/release/latest/" />
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/linuxtools/updates-docker-nightly/" />
+			<repository location="https://download.eclipse.org/linuxtools/update-2025-09-docker-rc2" />
 			<unit id="org.eclipse.linuxtools.docker.feature.feature.group" version="0.0.0" />
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/lsp4e/snapshots/" />
+			<repository location="https://download.eclipse.org/lsp4e/releases/0.27.9/" />
 			<unit id="org.eclipse.lsp4e" version="0.0.0" />
 			<unit id="org.eclipse.lsp4e.debug" version="0.0.0" />
 		</location>