bumb batik from 1.14 to 1.15 to resolve CVE-2022-34169

Author: MoxxiManagarm

pom.xml

@@ -214,7 +214,7 @@
   </build>
 
   <properties>
-    <open.batik.version>1.14</open.batik.version>
+    <open.batik.version>1.15</open.batik.version>
 
     <!-- Please keep xmlgraphics-commons up to date with batik. -->
     <open.xmlgraphics.commons.version>2.6</open.xmlgraphics.commons.version>