Bump xmlunit from 1.2 to 1.6

Bumps xmlunit from 1.2 to 1.6.

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

modello-plugins/modello-plugin-dom4j/pom.xml

@@ -37,7 +37,7 @@
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.2</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>

modello-plugins/modello-plugin-jdom/pom.xml

@@ -43,7 +43,7 @@
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.2</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>

modello-plugins/modello-plugin-sax/pom.xml

@@ -36,7 +36,7 @@
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.2</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>

modello-plugins/modello-plugin-stax/pom.xml

@@ -64,7 +64,7 @@
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.2</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>

modello-plugins/modello-plugin-xpp3/pom.xml

@@ -31,7 +31,7 @@
     <dependency>
       <groupId>xmlunit</groupId>
       <artifactId>xmlunit</artifactId>
-      <version>1.2</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>