Add PyPI pyproject.toml test for license, URLs and dependencies

[Shreyas12324]

This PR adds a new test case for the PyPI pyproject.toml parser.

The test covers:

• project.license using inline text format
• project.urls (Homepage and Repository)
• project.dependencies with version specifiers

Only test data and test assertions are added.
All relevant tests pass locally.

Tasks

• Reviewed contribution guidelines
• PR is descriptively titled
• Tests pass locally
• Commits are in uniquely-named feature branch

[AyanSinhaMahapatra]

@Shreyas12324 why was this extra test case required? Does the test cases we already have not cover any data attribute present in this test case? Is this even a real example present in the wild?

Closing as this does not add anything to the test suite more than mere volume and imaginary examples IMHO