Spring Multiple @ImportRuntimeHints in the type hierarchy should be supported

RuntimeHintsBeanFactoryInitializationAotProcessor#extractFromBeanFactory should be able to retrieve multiple annotations in the type hierarchy not just the first one as currently with the usage of beanFactory.findAnnotationOnBean(beanName, ImportRuntimeHints.class). We should be able to get the desired behavior using MergedAnnotations.from(beanType, SearchStrategy.TYPE_HIERARCHY).stream().

This issue impacts WebFluxEndpointHandlerMapping, WebMvcEndpointHandlerMapping, CloudFoundryWebEndpointServletHandlerMapping and CloudFoundryWebFluxEndpointHandlerMapping in Spring Boot, and maybe other use cases not yet identified.