[WIP][V2]Add devbox integration test

[popojk]

Tracking issue

Why are the changes needed?

Add devbox integration test in CI

What changes were proposed in this pull request?

How was this patch tested?

Labels

Please add one or more of the following labels to categorize your PR:

• added: For new features.
• changed: For changes in existing functionality.
• deprecated: For soon-to-be-removed features.
• removed: For features being removed.
• fixed: For any bug fixed.
• security: In case of vulnerabilities

This is important to improve the readability of release notes.

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Stack

If you do use git town to manage PR Stacks, the stack relevant to this PR
will show below. Otherwise, you can ignore this section.

• Flyte 2: Cut over to Flyte 2 new backend implementation #6583
  • [WIP][V2]Add devbox integration test 👈

Docs link

[Sovietaced]

Closing as this is against the old v2 branch. Please reopen against the main branch if you intend to land this.