Bump github.com/gin-gonic/gin from 1.7.2 to 1.9.0

Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.7.2 to 1.9.0.
- [Release notes](https://github.com/gin-gonic/gin/releases)
- [Changelog](https://github.com/gin-gonic/gin/blob/master/CHANGELOG.md)
- [Commits](gin-gonic/gin@v1.7.2...v1.9.0)

---
updated-dependencies:
- dependency-name: github.com/gin-gonic/gin
  dependency-type: direct:production
...

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

go.mod

@@ -5,14 +5,13 @@ go 1.14
 require (
 	github.com/disintegration/imaging v1.6.2
 	github.com/elazarl/goproxy v0.0.0-20200809112317-0581fc3aee2d // indirect
-	github.com/gin-gonic/gin v1.7.2
+	github.com/gin-gonic/gin v1.9.0
 	github.com/go-redis/redis v6.15.9+incompatible
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
 	github.com/jmoiron/sqlx v1.3.4
-	github.com/json-iterator/go v1.1.11
+	github.com/json-iterator/go v1.1.12
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/onsi/ginkgo v1.14.1 // indirect
 	github.com/onsi/gomega v1.10.2 // indirect
 	github.com/parnurzeal/gorequest v0.2.16