feat: add @order to ApplicationReadyEvent listener (#3151)

Author: WeisSebastian

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/events/SpringDocAppInitializer.java

@@ -31,6 +31,7 @@
 
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.event.EventListener;
+import org.springframework.core.annotation.Order;
 
 /**
  * The type Spring doc app initializer.
@@ -76,6 +77,7 @@ public SpringDocAppInitializer(String endpoint, String property, boolean springd
 	 * Init.
 	 */
 	@EventListener(ApplicationReadyEvent.class)
+    @Order(0)
 	public void init() {
 		if(!this.springdocEnabled)
 			LOGGER.warn("SpringDoc {} endpoint is enabled by default. To disable it in production, set the property '{}=false'", endpoint, property);