Add Jacek Centkowski to developers

Change-Id: If92e2efd75b8e8230f6ffc47f550a8cc92edea3b
diff --git a/tools/maven/gerrit-war_pom.xml b/tools/maven/gerrit-war_pom.xml
index b7eadd7..a804efb 100644
--- a/tools/maven/gerrit-war_pom.xml
+++ b/tools/maven/gerrit-war_pom.xml
@@ -41,6 +41,9 @@
       <name>Han-Wen Nienhuys</name>
     </developer>
     <developer>
+      <name>Jacek Centkowski</name>
+    </developer>
+    <developer>
       <name>Luca Milanesio</name>
     </developer>
     <developer>