fix DOAP changes entry for release 10.3.0

Author: vigyasharma

dev-tools/doap/lucene.rdf

@@ -74,7 +74,6 @@
         <revision>10.3.0</revision>
       </Version>
     </release>
-    <release>
     <release>
       <Version>
         <name>lucene-10.2.2</name>