Polish name of JettyServletWebServerFactory bean method

See gh-34421

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration.java

@@ -94,7 +94,7 @@ class ServletWebServerFactoryConfiguration {
 	static class EmbeddedJetty {
 
 		@Bean
-		JettyServletWebServerFactory JettyServletWebServerFactory(
+		JettyServletWebServerFactory jettyServletWebServerFactory(
 				ObjectProvider<JettyServerCustomizer> serverCustomizers) {
 			JettyServletWebServerFactory factory = new JettyServletWebServerFactory();
 			factory.getServerCustomizers().addAll(serverCustomizers.orderedStream().collect(Collectors.toList()));