Enforce authOptions with getServerSession wrapper

[Vinnl]

References:

Jira: MNTOR-2954
Figma: N/A

Description

Next-Auth's type definitions for getServerSession() don't enforce the first argument, and v5 (aka Auth.js) removes the function altogether, so an upstream fix is probably not in the books. And since the upstream docs recommend a wrapper (see https://next-auth.js.org/configuration/nextjs#getserversession), we can just enforce that through ESLint to avoid future instsances of the auth options not being passed.

How to test

There should be no behavioural changes.

Checklist (Definition of Done)

• Localization strings (if needed) have been added.
• Commits in this PR are minimal and have descriptive commit messages.
• I've added or updated the relevant sections in readme and/or code comments
• I've added a unit test to test for potential regressions of this bug.
• Product Owner accepted the User Story (demo of functionality completed) or waived the privilege.
• All acceptance criteria are met.
• Jira ticket has been updated (if needed) to match changes made during the development process.
• Jira ticket has been updated (if needed) with suggestions for QA when this PR is deployed to stage.

[mansaj]

Tested locally, ran e2e, LGTM