Add a property to disable HTTP Observations for actuator endpoints

It seems there is a good amount of users who are registering an ObservationPredicate in order to disable Observations for /actuator/** endpoints, something like this:

@Bean
ObservationPredicate actuatorServerContextPredicate() {
    return (name, context) -> {
        if (name.equals("http.server.requests") && context instanceof ServerRequestObservationContext serverContext) {
            return !serverContext.getCarrier().getRequestURI().startsWith("<actuator-base-path>");
        }
        return true;
    };
}

I think this common use-case could be simplified by creating a similar bean (for mvc and webflux) and let the users to configure this using a single property.