chore: promises generated with tf-module-promise should reference the latest terraform-generate image in the workflow

[SaphMB]

Context

At present, the when a promise is initiated from a terraform module via the kratix init tf-module-promise command, the generated promise.yaml includes a resource.configure workflow which references the ghcr.io/syntasso/kratix-cli/terraform-generate image. At present, the version of this image is hard-coded within the command and is updated manually.

A side-effect of this manual process if drift between the latest version of the image and the latest version on the kratix cli.

Acceptance

Given there is an update to the terraform-generate image
When I new release of the image is created
Then the version of the terraform-generate image in the `init_tf_module_promise` is updated

[kirederik]

@SaphMB could you confirm this is still needed? if so, could you un-tbc it? 😇