LSP4J 0.12.0 for 2021-06

Change-Id: I072bd111379c295a1a16d733a54ff8a48ccc3fd9
diff --git a/lsp4j.aggrcon b/lsp4j.aggrcon
index 46183af..963d9c0 100644
--- a/lsp4j.aggrcon
+++ b/lsp4j.aggrcon
@@ -1,7 +1,7 @@
 <?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" label="Lsp4j">
-  <repositories location="https://download.eclipse.org/lsp4j/updates/releases/0.11.0/" description="Lsp4j p2 repository">
-    <features name="org.eclipse.lsp4j.sdk.feature.group" versionRange="[0.11.0.v20210319-1409]">
+  <repositories location="https://download.eclipse.org/lsp4j/updates/releases/0.12.0/" description="Lsp4j p2 repository">
+    <features name="org.eclipse.lsp4j.sdk.feature.group" versionRange="[0.12.0.v20210402-1310]">
       <categories href="simrel.aggr#//@customCategories[identifier='General%20Purpose%20Tools']"/>
     </features>
   </repositories>