Fix GH Clones Needing Explicit Directory Name

[willGraham01]

What is this PR?

• Bug fix 🐛
• Addition of a new feature 🚀
• Documentation update 📃
• CI / infrastructure improvement 🔧
• Other 🤷

Why is this PR needed?

Cloning from GH via GitPython places the repository root in the target directory, it does not create a new directory with the repository name and insert it into the target directory.

This was causing the -g option to flag submissions as incorrect because the top-level folder did not match the expected naming pattern.

What does this PR do?

Repos that are fetched from GitHub now have their name inferred, and are relocated to a temporary directory with this name.

How has this PR been tested?

Is this a breaking change?

Checklist

• The code introduced in this PR has been tested locally.
• Appropriate tests have been added to cover any new functionality.
• The documentation has been updated to reflect any changes.
• The code has been formatted with pre-commit.