Update pom.xml (#502)

pom.xml

@@ -116,7 +116,7 @@
             <dependency>
                 <groupId>com.qcloud</groupId>
                 <artifactId>cos_api</artifactId>
-                <version>5.6.8</version>
+                <version>5.6.24</version>
             </dependency>
 
             <dependency>
@@ -244,4 +244,4 @@
         </plugins>
     </build>
 
-</project>
+</project>