feat(pulsar-query): 增加按指定url和topic判断是否匹配的接口

service-forest/src/main/java/com/lanyuanxiaoyao/service/forest/service/PulsarService.java

@@ -36,5 +36,8 @@ public interface PulsarService {
     ImmutableList<PulsarTopic> topics(@Query("name") String name, @Query("namespace") String namespace);
 
     @Get("/backlog")
-    Long backlog(@Query("name") String name, @Query("topic") String topic, @RequestParam("subscription") String subscription);
+    Long backlog(@Query("name") String name, @Query("topic") String topic, @Query("subscription") String subscription);
+
+    @Get("/exists_topic")
+    Boolean existsTopic(@Query("url") String url, @Query("topic") String topic);
 }