Update "Use Another Web Server" documentation

Closes gh-37238

spring-boot-project/spring-boot-docs/src/docs/asciidoc/howto/webserver.adoc

@@ -21,7 +21,7 @@ The following Maven example shows how to exclude Tomcat and include Jetty for Sp
 [source,xml,indent=0,subs="verbatim"]
 ----
 	<properties>
-		<servlet-api.version>3.1.0</servlet-api.version>
+		<jakarta-servlet.version>5.0.0</jakarta-servlet.version>
 	</properties>
 	<dependency>
 		<groupId>org.springframework.boot</groupId>
@@ -41,45 +41,7 @@ The following Maven example shows how to exclude Tomcat and include Jetty for Sp
 	</dependency>
 ----
 
-NOTE: The version of the servlet API has been overridden as, unlike Tomcat 9 and Undertow 2, Jetty 9.4 does not support servlet 4.0.
-
-If you wish to use Jetty 10, which does support servlet 4.0, you can do so as shown in the following example:
-
-[source,xml,indent=0,subs="verbatim"]
-----
-	<properties>
-		<jetty.version>10.0.8</jetty.version>
-	</properties>
-	<dependency>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-web</artifactId>
-		<exclusions>
-			<!-- Exclude the Tomcat dependency -->
-			<exclusion>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-starter-tomcat</artifactId>
-			</exclusion>
-		</exclusions>
-	</dependency>
-	<!-- Use Jetty instead -->
-	<dependency>
-		<groupId>org.springframework.boot</groupId>
-		<artifactId>spring-boot-starter-jetty</artifactId>
-		<exclusions>
-			<!-- Exclude the Jetty-9 specific dependencies -->
-			<exclusion>
-				<groupId>org.eclipse.jetty.websocket</groupId>
-				<artifactId>websocket-server</artifactId>
-			</exclusion>
-			<exclusion>
-				<groupId>org.eclipse.jetty.websocket</groupId>
-				<artifactId>javax-websocket-server-impl</artifactId>
-			</exclusion>
-		</exclusions>
-	</dependency>
-----
-
-Note that along with excluding the Tomcat starter, a couple of Jetty9-specific dependencies also need to be excluded.
+NOTE: The version of the Jakarta Servlet API has been overridden as, unlike Tomcat 10 and Undertow 2.3, Jetty 11 does not support Servlet 6.0.
 
 The following Gradle example configures the necessary dependencies and a {gradle-docs}/resolution_rules.html#sec:module_replacement[module replacement] to use Undertow in place of Reactor Netty for Spring WebFlux: