chore(tests): allow test customization via cli

[JonZeolla]

Contributor Comments

This allows us to run task test -- not slow and it will run all the tests, but exclude the slow ones, as an example.

Pull Request Checklist

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Please address the following items:

• If you are adding a dependency, please explain how it was chosen.
• If manual testing is needed in order to validate the changes, provide a testing plan and the expected results.
• Validate that documentation is accurate and aligned to any project updates or additions.

[ai-coding-guardrails]

I've got 1 comment for you to consider

The PR title and description are not accurate. Here are my suggestions:

Title: chore(tests): allow test customization via cli

Description: # Contributor Comments

This PR enables flexible test execution by allowing CLI arguments to be passed to pytest through the task runner. Users can now run commands like task test -- not slow to exclude slow tests, or combine any pytest markers and expressions.

Changes Made

• Modified Taskfile.yml configurations to support CLI_ARGS with existing test markers
• Added @pytest.mark.slow markers to long-running tests for better categorization
• Updated both main project and cookiecutter template configurations

Pull Request Checklist

Thank you for submitting a contribution!

Please address the following items:

• If you are adding a dependency, please explain how it was chosen.
• If manual testing is needed in order to validate the changes, provide a testing plan and the expected results.
• Validate that documentation is accurate and aligned to any project updates or additions.

Are we missing a feature you'd like? Submit it here!