chore(deps): bump github.com/gin-gonic/gin (#959)

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
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

example/object-map-example/go.mod

@@ -3,7 +3,7 @@ module github.com/swaggo/swag/example/object-map-example
 go 1.14
 
 require (
-	github.com/gin-gonic/gin v1.6.3
+	github.com/gin-gonic/gin v1.7.0
 	github.com/swaggo/files v0.0.0-20190704085106-630677cd5c14
 	github.com/swaggo/gin-swagger v1.3.0
 	github.com/swaggo/swag v1.5.1