Adds integration tests for private image sharing

[PawelSnoch]

📝 Description copied from Copilot

This PR adds comprehensive integration tests for the private image sharing feature through share groups. The tests validate CRUD operations, token management, member operations, and error handling for invalid inputs.

Key changes:

New test suite covering all image-sharegroups CLI actions and error scenarios
Pytest fixtures for creating test resources (share groups, images, regions)
Updated regex pattern in helpers to support comma-separated action names in help output.

✔️ How to Test

make test-int TEST_CASE=sharegroups

[Copilot]

Pull Request Overview

This PR adds comprehensive integration tests for the private image sharing feature through share groups. The tests validate CRUD operations, token management, member operations, and error handling for invalid inputs.

Key changes:

• New test suite covering all image-sharegroups CLI actions and error scenarios
• Pytest fixtures for creating test resources (share groups, images, regions)
• Updated regex pattern in helpers to support comma-separated action names in help output

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
tests/integration/sharegroups/test_images_sharegroups.py	Adds 16 test functions covering share group operations, image management, token handling, and member management
tests/integration/sharegroups/fixtures.py	Adds fixtures for creating test share groups, images, and retrieving regions with image status polling
tests/integration/helpers.py	Updates regex pattern to parse help output with comma-separated actions and adds image-sharegroups to BASE_CMDS

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[ezilber-akamai]

Test suite looks thorough and passes locally. Great work!

[vshanthe]

May be you need to run make lint and make format to fix the CI failure

[PawelSnoch]

May be you need to run make lint and make format to fix the CI failure

You are right. It is done and now all checks have passed. Thank you!

[vshanthe]

Working locally , Nice work!