v7: Update ginkgo version to v2

[gururajsh]

Thank you for contributing to the CF CLI! Please read the following:

• Please make sure you have implemented changes in line with the contributing guidelines
• We're not allowed to accept any PRs without a signed CLA, no matter how small. If your contribution falls under a company CLA but your membership is not public, expect delays while we confirm.
• All new code requires tests to protect against regressions.
• Contributions must be made against the appropriate branch. See the contributing guidelines
• Contributions must conform to our style guide. Please reach out to us if you have questions.

Where this PR should be backported?

• [ ] main - all changes should by default start here
• [ ] v8
• [x] v7

Description of the Change

CLI was using ginkgo version v1 which is outdated for a while now. This change updates the ginkgo version to v2.

Why Is This PR Valuable?

Updates the ginkgo version so that there is on going support for this dependency.

Applicable Issues

None

How Urgent Is The Change?

Not urgent

Other Relevant Parties

Who else is affected by the change?