Opera-api

*The version of `xopera-opera` has been updated to `0.6.5`*

This release has these new additions:

* API support for `opera notify`, enabling events/triggers and thus scaling flows

It improves:

* semi-automated testing to help ensure better, consistent and faster releases
* the version of `cryptography` has been pinned to ensure builds on Alpine succeed - currently without Rust

_The version of `xopera-opera` has been updated to `0.6.4`_

This release has these new additions:

* API support for `opera init`
* API support for `opera package`
* API support for `opera unpackage`

It improves:

* the `opera info` implementation has been updated to return more information when using an non-deployed or uninitialized project

Update to xopera-opera 0.6.2, which introduces the info command.

This release brings much better output handling, supporting in-progress output monitoring. Stdout and stderr have been split in the API, hence a bigger version change.

End-to-end testing is apparently important. The `xopera-opera` dependency wasn't applied in `setup.cfg`, which meant functions were called with incorrect (newer) signatures. Fun times without static typing.

The first release where a complete workflow with all commands was tested.