Fix redoc version property of dubbo-rest-openapi (#15584)

Author: zrlw

dubbo-plugin/dubbo-rest-openapi/pom.xml

@@ -29,7 +29,7 @@
   <properties>
     <swagger-annotations.version>2.2.32</swagger-annotations.version>
     <swagger-ui.version>5.22.0</swagger-ui.version>
-    <redoc.version>2.2.0</redoc.version>
+    <redoc.version>2.3.0</redoc.version>
     <webjars-locator.version>1.0.1</webjars-locator.version>
     <therapi.version>0.15.0</therapi.version>
   </properties>
@@ -54,7 +54,7 @@
     <dependency>
       <groupId>org.webjars</groupId>
       <artifactId>redoc</artifactId>
-      <version>2.3.0</version>
+      <version>${redoc.version}</version>
     </dependency>
     <dependency>
       <groupId>org.webjars</groupId>