[hydrate-orchestrator] Add optional input to specify operator image tag

[jalvarezit]

Motivation

Reviewing the process to update the image we realize that image version has two configuration possibilities at the moment:

• Default value specific to that module version
• Read the image version from the config file `

However it would be interesting to have a CLI input to specify the tag as we did previously in notify-and-hydrate-state

We could reuse FIRESTARTER_WORKFLOW_DOCKER_IMAGE_TAG github action variable and pass that version through the feature . This also allows specifying version for a specific repo by overriding org github action variable in the given repository.

The order preference should be as follow:

1. input flag
2. config file
3. default value

We could also delete config file if it does not apply anymore

Acceptance criteria

• Add new input to specify version
• Update features to use that new input