Update to receive routerOperation as a return

Author: 최현진[Plasma]

springdoc-openapi-common/src/main/java/org/springdoc/api/AbstractOpenApiResource.java

@@ -392,7 +392,7 @@ protected synchronized OpenAPI getOpenApi(Locale locale) {
 	protected void calculatePath(HandlerMethod handlerMethod,
 			RouterOperation routerOperation, Locale locale, OpenAPI openAPI) {
 
-		customiseRouterOperation(routerOperation, handlerMethod);
+		routerOperation = customiseRouterOperation(routerOperation, handlerMethod);
 
 		String operationPath = routerOperation.getPath();
 		Set<RequestMethod> requestMethods = new HashSet<>(Arrays.asList(routerOperation.getMethods()));