test: improve auth test coverage

[zkoppert]

improve auth test coverage by adding invalid and failed app install tests

Pull Request

Proposed Changes

This pull request adds new test cases to the test_auth.py file to improve the coverage and robustness of the authentication functions. The most important changes include importing the requests library, adding a test for handling request failures, and adding a test for handling invalid credentials.

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 fix, documentation, enhancement, infrastructure, maintenance, or breaking

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