Fix typo

Closes gh-12825

spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -5483,7 +5483,7 @@ The following code shows a typical example:
 
 		private final RestTemplate restTemplate;
 
-		public MyBean(RestTemplateBuilder restTemplateBuilder) {
+		public MyService(RestTemplateBuilder restTemplateBuilder) {
 			this.restTemplate = restTemplateBuilder.build();
 		}