* feat: add companion object to data classes if the implement the interface java.io.Serializable
* style: format template file
* style: adapt to project's original code style
* fix: add missing imports
* style: reverted mustache template to original styling
* test: generate additional samples for kotlin-springboot-reactive and kotlin-springboot
* docs: name full qualified classname of interface java.io.Serializable to prevent confusion with kotlinx.serialization
* chore: add removing old files function to the scripts.
chore: add removing old files function to the scripts.
* docs: update by ./bin/go-gin-petstore-server.sh
* docs: update by ./bin/go-petstore-server.sh
* docs: update by ./bin/go-petstore-withxml.sh
* docs: update by ./bin/openapi3/go-petstore-server.sh
* docs: update by ./bin/security/go-petstore.sh
* chore: apply release mode for the Dockerfile
* docs: update by `./bin/go-gin-petstore-server.sh`
* docs: update by `./bin/openapi3/go-gin-petstore-server.sh`
* Issue 1766 Modified mustache files for Go to support nullable in the spec v3.0+; Updated model files running .sh scripts for Go.
* Add "nullable" to fake yaml
* Add sample script for OAS3
* Fix output folder (openapi3)
* Run bin/openapi3/go-petstore.sh
* Update samples
* Update jaxrs-jersey
* Update python and php samples
* Add bin/openapi3/go-gin-petstore-server.sh
* Run bin/openapi3/go-gin-petstore-server.sh
* Update bin/openapi3/go-petstore-server.sh to generate "nullable" samples
* Run bin/openapi3/go-petstore-server.sh
* Fix duplicated `import`