chore(pom): bump node minor

Author: duncdrum

pom.xml

@@ -49,7 +49,7 @@
     <project.build.target>1.8</project.build.target>
 
     <exist.version>4.7.0</exist.version>
-    <node.version>v11.14.0</node.version>
+    <node.version>v11.15.0</node.version>
     <npm.version>6.9.0</npm.version>
 
     <package-name>http://exist-db.org/apps/doc</package-name>