add xmlunit

Co-authored-by: tiendat-NTD <tiendat.8498@gmail.com>
Co-authored-by: macmie2411999 <caoducmanh2411999@gmail.com>

Author: Tynab

pom.xml

@@ -136,6 +136,11 @@
             <artifactId>logback-classic</artifactId>
             <version>1.2.13</version>
         </dependency>
+        <dependency>
+            <groupId>org.xmlunit</groupId>
+            <artifactId>xmlunit-core</artifactId>
+            <version>2.10.0</version>
+        </dependency>
     </dependencies>
     <build>
         <plugins>