build: Update dependencies to fix CI (#779)

Signed-off-by: Sheng Chen <[email protected]>

Author: jdneo

jdtls.ext/com.microsoft.jdtls.ext.target/com.microsoft.jdtls.ext.tp.target

@@ -14,18 +14,18 @@
             <unit id="org.eclipse.equinox.sdk.feature.group" version="0.0.0"/>
             <unit id="org.eclipse.jdt.source.feature.group" version="0.0.0"/>
             <unit id="org.eclipse.sdk.feature.group" version="0.0.0"/>
-            <repository location="https://download.eclipse.org/eclipse/updates/4.27/R-4.27-202303020300"/>
+            <repository location="https://download.eclipse.org/eclipse/updates/4.28/R-4.28-202306050440/"/>
         </location>
         <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
             <unit id="org.eclipse.xtext.xbase.lib" version="0.0.0"/>
-            <repository location="https://download.eclipse.org/releases/2022-12/"/>
+            <repository location="https://download.eclipse.org/releases/2023-06/"/>
         </location>
         <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
             <unit id="org.eclipse.jdt.ls.core" version="0.0.0"/>
             <repository location="https://download.eclipse.org/jdtls/snapshots/repository/latest/"/>
         </location>
         <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-           <repository location="https://download.eclipse.org/lsp4j/updates/releases/0.20.0/"/>
+           <repository location="https://download.eclipse.org/lsp4j/updates/releases/0.21.0/"/>
            <unit id="org.eclipse.lsp4j.sdk.feature.group" version="0.0.0"/>
         </location>
     </locations>