chore: bump golang.org/x/net to v0.7.0 amd gin to 1.9.0 (swaggo#262)

* chore: bump golang.org/x/net to v0.7.0

* chore: bump golang.org/x/net to v0.7.0

* chore: bump golang.org/x/net to v0.7.0

* chore: bump golang.org/x/net to v0.7.0

* chore: bump golang.org/x/net to v0.7.0 amd gin to 1.9.0

* chore: drop support for go 1.16

chore: Update multiple API example (swaggo#224)

chore: remove google fonts (swaggo#227)

fix: update gin-contrib/gzip to latest version (swaggo#220)

chore: remove swagger-files from current project in favor of github.c…

…om/swaggo/files (swaggo#215)

chore: dependencies (swaggo#208)

chore: security improvement (swaggo#203)

feat: add support for swagger-ui persist-authorization (swaggo#195)

chore: drop go1.13 (swaggo#190)

feat: allow multiple Swagger documents (swaggo#168)