Re-migrate more auth related qa-selectors

What does this MR do and why?

This is a re-submission of !135327 (merged) which was reverted in !135898 (merged) due to an incident

This MR has a lesser file changes than the earlier MR as those files were migrated in other MRs.

To ensure the issue doesn't happen again, we:

1. Added data-testid: 'login-page' to the login page while keeping the data-qa-selector: 'login_page' around. We will remove data-qa-selector: 'login_page' once this MR is through to production.
2. Added a validation to check if the tests are actually running against canary when gitlab_canary=true cookie is set.

Original description:

Migrate more data-qa-selector used by e2e specs for groupauthentication and groupauthorization as part of gitlab-org/quality/quality-engineering/team-tasks#1735

Related task: gitlab-org/quality/quality-engineering/team-tasks#1822 (closed)

Work item: gitlab-org/quality/quality-engineering/team-tasks#1823 (closed)

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