Update dependencies (#36)

Update swaggo/swag to 1.7.0

Author: Atte Kojo

Diff for: go.mod

@@ -1,17 +1,15 @@
 module github.com/swaggo/echo-swagger
 
 require (
-	github.com/go-openapi/jsonreference v0.19.3 // indirect
-	github.com/go-openapi/spec v0.19.4 // indirect
+	github.com/go-openapi/spec v0.20.0 // indirect
 	github.com/labstack/echo/v4 v4.0.0
-	github.com/mailru/easyjson v0.7.0 // indirect
 	github.com/mattn/go-colorable v0.1.0 // indirect
-	github.com/stretchr/testify v1.3.0
+	github.com/mattn/go-isatty v0.0.8 // indirect
+	github.com/stretchr/testify v1.6.1
 	github.com/swaggo/files v0.0.0-20190704085106-630677cd5c14
-	github.com/swaggo/swag v1.6.3
-	golang.org/x/net v0.0.0-20191204025024-5ee1b9f4859a // indirect
-	golang.org/x/tools v0.0.0-20191205060818-73c7173a9f7d // indirect
-	gopkg.in/yaml.v2 v2.2.7 // indirect
+	github.com/swaggo/swag v1.7.0
+	golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb // indirect
+	golang.org/x/tools v0.0.0-20201207182000-5679438983bd // indirect
 )
 
 go 1.13