ci: hard coded dates to declarative

[zkoppert]

Pull Request

Proposed Changes

This pull request makes changes to the test functions test_get_inactive_repos_with_inactive_repos, test_get_inactive_repos_with_no_organization_set, and test_get_inactive_repos_with_default_branch_updated. The changes consist of replacing a hard-coded date string with a dynamic date value, forty_days_ago.date().isoformat(), for the last_push_date key in the test data. This makes the tests more robust and not reliant on a fixed date.

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

[zkoppert]

I search for "2024 to ensure I got all the instances of this bug across the different test files.

[ajhenry]

lgtm!