Fix param order in koparse backwards_compatible_params

[AlanGreene]

Changes

See for example: https://dashboard.dogfooding.tekton.dev/#/namespaces/tekton-nightly/pipelineruns/wait-task-release-nightly-qk72w?pipelineTask=publish-images&step=koparse

2024-09-19T09:14:57.305509466Z + IMAGES_PATH=[gcr.io/tekton-nightly/github.com/tektoncd/experimental](http://gcr.io/tekton-nightly/github.com/tektoncd/experimental)
2024-09-19T09:14:57.305584903Z + '[' wait-task '!='  ]
2024-09-19T09:14:57.307406787Z + IMAGES_PATH=[gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task](http://gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task)
2024-09-19T09:14:57.307428664Z + [IMAGES=gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task/cmd/controller:v20240919-2ce2f72e49](http://images=gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task/cmd/controller:v20240919-2ce2f72e49)
2024-09-19T09:14:57.307563297Z + koparse --path /workspace/output/v20240919-2ce2f72e49/release.yaml --base [gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task](http://gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task) --images [gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task/cmd/controller:v20240919-2ce2f72e49](http://gcr.io/tekton-nightly/github.com/tektoncd/experimental/wait-task/cmd/controller:v20240919-2ce2f72e49)
2024-09-19T09:14:59.511998655Z Traceback (most recent call last):
2024-09-19T09:14:59.512055747Z   File "/usr/local/bin/koparse", line 142, in <module>
2024-09-19T09:14:59.512668819Z     container_registry, expected_images, base = backwards_compatible_params(
2024-09-19T09:14:59.512690946Z                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-09-19T09:14:59.512697022Z   File "/usr/local/bin/koparse", line 120, in backwards_compatible_params
2024-09-19T09:14:59.512943282Z     container_registry = "/".join(base.split("/")[:2])
2024-09-19T09:14:59.512956609Z                                   ^^^^^^^^^^
2024-09-19T09:14:59.513050417Z AttributeError: 'list' object has no attribute 'split'

/kind bug

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Includes docs (if user facing)
• Commit messages follow commit message best practices

See the contribution guide
for more details.

[afrittoli]

Thank you!
/lgtm

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: afrittoli

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [afrittoli]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment