Update dependency org.springdoc:springdoc-openapi-starter-webflux-api to v2.8.3

Author: renovate[bot]

server/pom.xml

@@ -54,7 +54,7 @@
             <groupId>org.springdoc</groupId>
             <!--artifactId>springdoc-openapi-starter-webmvc-ui</artifactId-->
             <artifactId>springdoc-openapi-starter-webflux-api</artifactId>
-            <version>2.6.0</version>
+            <version>2.8.3</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>