Bump Maven plugin

(cherry picked from commit bc204c3)

Author: acogoluegnes

pom.xml

@@ -65,7 +65,7 @@
     <jetty.version>9.4.27.v20200227</jetty.version>
     <bouncycastle.version>1.64</bouncycastle.version>
 
-    <maven.javadoc.plugin.version>3.1.1</maven.javadoc.plugin.version>
+    <maven.javadoc.plugin.version>3.2.0</maven.javadoc.plugin.version>
     <maven.release.plugin.version>2.5.3</maven.release.plugin.version>
     <versions.maven.plugin.version>2.3</versions.maven.plugin.version>
     <maven.resources.plugin.version>3.0.2</maven.resources.plugin.version>