Update dependency org.springdoc:springdoc-openapi-starter-webmvc-ui to v2.8.9

Author: xdev-renovate

demo/pom.xml

@@ -154,7 +154,7 @@
 			<dependency>
 				<groupId>org.springdoc</groupId>
 				<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
-				<version>2.8.8</version>
+				<version>2.8.9</version>
 			</dependency>
 
 			<dependency>