Bump github.com/gin-gonic/gin from 1.3.0 to 1.7.0

Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.3.0 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@v1.3.0...v1.7.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -11,8 +11,7 @@ require (
 	github.com/banzaicloud/bank-vaults v0.0.0-20190426093051-56575dca8ce3
 	github.com/banzaicloud/go-gin-prometheus v0.0.0-20190417120951-df9373ad5327
 	github.com/gin-contrib/cors v0.0.0-20190424000812-bd1331c62cae
-	github.com/gin-contrib/sse v0.0.0-20190124093953-61b50c2ef482 // indirect
-	github.com/gin-gonic/gin v1.3.0
+	github.com/gin-gonic/gin v1.7.0
 	github.com/go-openapi/errors v0.19.0
 	github.com/go-openapi/runtime v0.19.0
 	github.com/go-openapi/strfmt v0.19.0
@@ -34,9 +33,8 @@ require (
 	github.com/spf13/afero v1.2.0 // indirect
 	github.com/spf13/pflag v1.0.3
 	github.com/spf13/viper v1.3.2
-	github.com/stretchr/testify v1.3.0
+	github.com/stretchr/testify v1.4.0
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
-	github.com/ugorji/go/codec v0.0.0-20190204201341-e444a5086c43 // indirect
 	golang.org/x/net v0.0.0-20190424112056-4829fb13d2c6
 	golang.org/x/oauth2 v0.0.0-20190115181402-5dab4167f31c
 	google.golang.org/genproto v0.0.0-20190123001331-8819c946db44 // indirect