chore: improve auth test coverage

[zkoppert]

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

Pull Request

Proposed Changes

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