Publish Rasa models in Backoffice

[turnerrainer]

AS A Chatbot Trainer I WANT newly trained LLM models to be taken into use on selected environments when I decide so SO THAT updated models could have an impact on End Client's user experience ASAP

Acceptance Criteria

Based on https://github.com/buerokratt/S3-Ferry/issues/1

• [ ] ~Keep archived (used) and newly trained (unused) models in separate folders~
• [x] Use CronManager to check if there are any new models to be deployed
• [ ] Deploying models can be initiated manually
• [ ] Newly trained models are in effect in chosen environment

Scope

• [ ] Works on all of Bürokratt's Riigipilv's environments

Functionalities

• [x] #417
• [x] #418

[Kristjan259]

Same problem as in this Task #635 - because of this cannot test:

• Deploying models can be initiated manually
• Newly trained models are in effect in chosen environment