Upgrade to XmlUnit AssertJ 2.10.4

Closes gh-1692

Author: snicoll

spring-ws-platform/build.gradle

@@ -71,10 +71,10 @@ dependencies {
 		api("org.jdom:jdom2:2.0.6.1")
 		api("org.jvnet.staxex:stax-ex:2.1.0")
 		api("org.mockito:mockito-core:4.11.0")
-		api("org.xmlunit:xmlunit-assertj:2.10.2")
-		api("org.xmlunit:xmlunit-core:2.10.2")
-		api("org.xmlunit:xmlunit-legacy:2.10.2")
-		api("org.xmlunit:xmlunit-placeholders:2.10.2")
+		api("org.xmlunit:xmlunit-assertj:2.10.4")
+		api("org.xmlunit:xmlunit-core:2.10.4")
+		api("org.xmlunit:xmlunit-legacy:2.10.4")
+		api("org.xmlunit:xmlunit-placeholders:2.10.4")
 		api("wsdl4j:wsdl4j:1.6.3")
 		api("xom:xom:1.3.9")
 	}