build: bump json-smart 2.4.7

Author: damingerdai

mvnw

@@ -104,6 +104,13 @@
                 <artifactId>botbuilder-spring-boot-autoconfigure</artifactId>
                 <version>${project.version}</version>
             </dependency>
+
+             <!-- json-smart 2.3-SNAPSHOT is not found -->
+            <dependency>
+                <groupId>net.minidev</groupId>
+                <artifactId>json-smart</artifactId>
+                <version>2.4.7</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>