Bump fastjson from 1.2.31 to 1.2.83

Bumps [fastjson](https://github.com/alibaba/fastjson) from 1.2.31 to 1.2.83.
- [Release notes](https://github.com/alibaba/fastjson/releases)
- [Commits](https://github.com/alibaba/fastjson/compare/1.2.31...1.2.83)

---
updated-dependencies:
- dependency-name: com.alibaba:fastjson
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -47,7 +47,7 @@
         <!-- json start -->
 		<jackson.version>1.8.4</jackson.version>
 		<json-lib.version>2.1</json-lib.version>
-		<fastjson-lib.version>1.2.31</fastjson-lib.version>
+		<fastjson-lib.version>1.2.83</fastjson-lib.version>
 		<gson.version>2.2.4</gson.version>
         <!-- dom4j -->
 		<dom4j.version>1.6.1</dom4j.version>