Remove references to Y-builds repo (eclipse-jdt#2101)

* Remove references to Y-builds repo

* Version bump(s) for 4.36 stream

---------

Co-authored-by: Eclipse JDT Bot <[email protected]>

Author: jarthana

org.eclipse.jdt.astview.feature/feature.xml

@@ -2,7 +2,7 @@
 <feature
       id="org.eclipse.jdt.astview.feature"
       label="Java AST View"
-      version="1.2.400.qualifier"
+      version="1.2.500.qualifier"
       provider-name="Eclipse.org"
       license-feature="org.eclipse.license"
       license-feature-version="0.0.0">