Polish Javadoc for ClientRequestObservationContext constructors

See gh-31875

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ClientRequestObservationContext.java

@@ -52,15 +52,17 @@ public class ClientRequestObservationContext extends RequestReplySenderContext<C
 
 	/**
 	 * Create a new Observation context for HTTP client observations.
-	 * @deprecated as of 6.1, in favor of {@link #ClientRequestObservationContext(ClientRequest.Builder)}
+	 * @deprecated as of 6.1.2, in favor of {@link #ClientRequestObservationContext(ClientRequest.Builder)}
 	 */
-	@Deprecated(since = "6.1", forRemoval = true)
+	@Deprecated(since = "6.1.2", forRemoval = true)
 	public ClientRequestObservationContext() {
 		super(ClientRequestObservationContext::setRequestHeader);
 	}
 
 	/**
 	 * Create a new Observation context for HTTP client observations.
+	 * @param request client request builder
+	 * @since 6.1.2
 	 */
 	public ClientRequestObservationContext(ClientRequest.Builder request) {
 		super(ClientRequestObservationContext::setRequestHeader);