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)

update swagger ui to 3.52.0 (swaggo#164)

improve unit test

Update github.com/ugorji/go dependecy