K8SSAND-968 ⁃ Generate a go client for the management API using the openapi spec

[sync-by-unito[bot]]

Swagger/OpenAPI allows us to generate client code for the management API automatically. Once the openapi spec of the mgmt api is fixed, we'll get to generate a Go client (using go-swagger for example) that we'd use for interactions between the operators and the mgmt api.

Such a client should be generated through CI and made available easily for developers to use.

┆Issue is synchronized with this Jira Story by Unito