update json lib version

Author: sean-liu55

build.gradle

@@ -84,7 +84,7 @@ dependencies {
     compile "org.apache.commons:commons-collections4:4.0"
     compile "org.apache.commons:commons-lang3:3.4"
     compile group: 'com.google.api.grpc', name: 'googleapis-common-protos', version: '0.0.3'
-    compile 'com.alibaba:fastjson:1.2.47'
+    compile 'com.alibaba:fastjson:1.2.76'
 
     compile group: 'commons-io', name: 'commons-io', version: '2.6'
     compile group: 'org.projectlombok', name: 'lombok', version: '1.18.2'