Add Missing Since

Issue spring-projectsgh-10482

web/src/main/java/org/springframework/security/web/access/intercept/RequestMatcherDelegatingAuthorizationManager.java

@@ -119,6 +119,7 @@ public Builder add(RequestMatcher matcher, AuthorizationManager<RequestAuthoriza
 		 * @param mappingsConsumer used to configure the {@link RequestMatcher} to
 		 * {@link AuthorizationManager} mappings.
 		 * @return the {@link Builder} for further customizations
+		 * @since 5.7
 		 */
 		public Builder mappings(
 				Consumer<Map<RequestMatcher, AuthorizationManager<RequestAuthorizationContext>>> mappingsConsumer) {