Implement handling of new cookie received from SU platform

[MattyTheHacker]

Note this will need the cookie checking task (or some other query) to run more often than the cookie expires. For MSL this appears to be about 15 minutes

[Copilot]

Pull request overview

This pull request implements automatic handling of cookie updates from the SU platform. The MSL platform returns updated authentication cookies in HTTP responses that expire approximately every 15 minutes. The PR refactors cookie management to detect and store these updated cookies, and consolidates duplicate HTTP session handling code.

Changes:

• Introduced fetch_url_content_with_session function to handle HTTP requests with automatic cookie update detection and storage
• Refactored fetch_community_group_members_list to use the new shared session handling function
• Removed duplicate HTTP session code from CheckSUPlatformAuthorisationBaseCog class

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
utils/msl/memberships.py	Added fetch_url_content_with_session function to detect and update cookies from server responses; refactored fetch_community_group_members_list to use new function
utils/msl/init.py	Exported new fetch_url_content_with_session function
cogs/check_su_platform_authorisation.py	Removed duplicate HTTP session handling code; replaced with calls to shared fetch_url_content_with_session function

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.