Upgrade from the click to the typer library

[Averagenormaljoe]

Pull Request

Description

Changed the CLI command in 'site_forecast_app/app.py' for the app function to use the typer library instead of click. Additionally, changed the 'run_click_script' to 'run_typer_script' in 'tests/_utils.py' and replaced the CLI runner for click with typer.

This pull request is related to the issue #15.

Fixes #

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.
Please also list any relevant details for your test configuration

• Yes

If your changes affect data processing, have you plotted any changes? i.e. have you done a quick sanity check?

• Yes

Checklist:

• [*] My code follows OCF's coding style guidelines
• [*] I have performed a self-review of my own code
• [*] I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• [*] I have checked my code and corrected any misspellings

[peterdudfield]

Can you fix lint, then I will review

[Averagenormaljoe]

I will fix the lint.

[Averagenormaljoe]

Should this pull request be removed as someone else is now working on the issue? @peterdudfield