feat: update @CascadingUpdateShadowVariable models

[zepfred]

Description of the change

This pull request updates the models of food-packaging, task-assigning, and vehicle-routing to match the changes from TimefoldAI/timefold-solver#1020.

Checklist

Development

• The changes have been covered with tests, if necessary.
• You have a green build, with the exception of the flaky tests.
• UI and JS files are fully tested, the user interface works for all modules affected by your changes (e.g., solve and analyze buttons).
• The network calls work for all modules affected by your changes (e.g., solving a problem).
• The console messages are validated for all modules affected by your changes.

Code Review

• This pull request includes an explanatory title and description.
• The GitHub issue is linked.
• At least one other engineer has approved the changes.
• After PR is merged, inform the reporter.

[zepfred]

@triceo, it looks like the CI is fetching the development branch instead of the PR branch. I moved the checkout step to the beginning of the script to see if it fixes the issue.

[triceo]

Not sure about the var dependencies.