Image Override in Fargate Task

[Pballer]

I have an ECS worker setup and would like to override the image when a deployment is started.

When I pass in job_variables, it works for cpu and memory, but image is ignored.

"job_variables": {
            "cpu": 1024,
            "memory": 4096,
            "image": "123456789098.dkr.ecr.us-east-2.amazonaws.com/prefect-ecr-flow:dev",
        }

Is it possible to override the Fargate task definition's image?

Prefect Version:
prefect[aws]==3.0.2

[Pballer]

ECS base job template:

Task Definition Arn (Optional)
An identifier for an existing task definition to use. If set, options that require changes to the task definition will be ignored. All contents of the task definition in the job configuration will be ignored.

'Image' is not a supported override when providing a Task Definition Arn.