test: add more tests to increase auth test coverage

[zkoppert]

Pull Request

This pull request introduces new test cases to the test_auth.py file to improve the coverage and robustness of the authentication tests. The changes include importing the requests library and adding tests for handling request failures and invalid credentials.

Proposed Changes

Readiness Checklist

Author/Contributor

• If documentation is needed for this change, has that been included in this pull request
• run make lint and fix any issues that you have introduced
• run make test and ensure you have test coverage for the lines you are introducing
• If publishing new data to the public (scorecards, security scan results, code quality results, live dashboards, etc.), please request review from @jeffrey-luszcz

Reviewer

• Label as either bug, documentation, enhancement, infrastructure, maintenance or breaking

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