Bump fastjson from 1.2.56 to 1.2.83 in /wx-app-core#16

dependabot[bot] wants to merge 1 commit intomasterJasonandy/springboot-wx:masterfrom

dependabot/maven/wx-app-core/com.alibaba-fastjson-1.2.83Jasonandy/springboot-wx:dependabot/maven/wx-app-core/com.alibaba-fastjson-1.2.83Copy head branch name to clipboard