Fix snippet imports

See gh-36175

framework-docs/src/main/java/org/springframework/docs/web/webmvc/mvcservlet/mvccontainerconfig/MyXmlDispatcherServletInitializer.java

@@ -17,8 +17,8 @@
 package org.springframework.docs.web.webmvc.mvcservlet.mvccontainerconfig;
 
 import org.springframework.web.context.WebApplicationContext;
-import org.springframework.web.context.support.AbstractDispatcherServletInitializer;
 import org.springframework.web.context.support.XmlWebApplicationContext;
+import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer;
 
 // tag::snippet[]
 public class MyXmlDispatcherServletInitializer extends AbstractDispatcherServletInitializer {

framework-docs/src/main/kotlin/org/springframework/docs/web/webmvc/mvcservlet/mvccontainerconfig/MyXmlDispatcherServletInitializer.kt

@@ -17,8 +17,8 @@
 package org.springframework.docs.web.webmvc.mvcservlet.mvccontainerconfig
 
 import org.springframework.web.context.WebApplicationContext
-import org.springframework.web.context.support.AbstractDispatcherServletInitializer
 import org.springframework.web.context.support.XmlWebApplicationContext
+import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer
 
 // tag::snippet[]
 class MyXmlDispatcherServletInitializer : AbstractDispatcherServletInitializer() {