add batik to forbidden-apis-check classpath

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1886862 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/build.xml b/build.xml
index fe46255..0ed2117 100644
--- a/build.xml
+++ b/build.xml
@@ -2501,6 +2501,7 @@
             <pathelement location="build/dist/maven/poi-tests/poi-${version.id}-tests.jar"/>
             <pathelement location="build/dist/maven/poi-examples/poi-examples-${version.id}.jar"/>
             <path path="${env.CLASSPATH}"/>
+            <path refid="batik.classpath"/>
         </path>
 
         <!-- forbiddenapis bundled signatures max supported version is 14 -->