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](alibaba/fastjson@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>

Author: dependabot[bot]

pom.xml

@@ -28,7 +28,7 @@
 		<commons.fileupload.version>1.3.3</commons.fileupload.version>
 		<commons.codec.version>1.9</commons.codec.version>
 		<guava.version>18.0</guava.version>
-		<fastjson.version>1.2.31</fastjson.version>
+		<fastjson.version>1.2.83</fastjson.version>
 		<javax.persistence.version>1.0.2</javax.persistence.version>
 		<mysql.connector.version>5.1.22</mysql.connector.version>
 	</properties>