Bump github.com/gin-gonic/gin from 1.6.3 to 1.7.0

Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.6.3 to 1.7.0.
- [Release notes](https://github.com/gin-gonic/gin/releases)
- [Changelog](https://github.com/gin-gonic/gin/blob/master/CHANGELOG.md)
- [Commits](gin-gonic/gin@v1.6.3...v1.7.0)

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

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Author: dependabot[bot]

go.mod

@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/HaleyLeoZhang/go-component v1.7.0
 	github.com/Shopify/sarama v1.28.0
-	github.com/gin-gonic/gin v1.6.3
+	github.com/gin-gonic/gin v1.7.0
 	github.com/google/uuid v1.1.2
 	github.com/jinzhu/gorm v1.9.16
 	github.com/mailru/easyjson v0.7.7