Docker image versioning

[walison17]

Today we only have 1 tag/version (latest) of the docker image, this approach means that consumers always use the most recent version of dialog which may have some breaking changes. It would be amazing if we had some versioning system like semantic versioning to avoid problems like this.

[vmesel]

@walison17 its a cool idea, we need to start working on releases so we can get this kind of approach done.

[avelino]

First, we need to focus on versioning the Python software and then replicate that to the Docker image.

[vmesel]

I've added the auto-tagger, so every commit that goes to main, we generate a new tag