Omit project_euler/ from coverage reports

[tianyizheng02]

Describe your change:

Our current pytest command for our builds is the following:

pytest --ignore=quantum/q_fourier_transform.py --ignore=project_euler/ --ignore=scripts/validate_solutions.py --cov-report=term-missing:skip-covered --cov=. .

Since we're not testing files in the project_euler/ or scripts/ directories, we should exclude them from our builds' coverage reports as well. project_euler/ files in particular significantly clutter the reports.

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
• All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

[cclauss]

Let's leave scripts in. I dislike not testing things.

Suggested change

"scripts/*"

I think the coverage report is way too long and users need to scroll across hundreds of lines (that no one reads) to find their failing pytests.

Would it be possible to put coverage in a separate GitHub Actions step so its output is not tagged directly on the end of pytest output?

[tianyizheng02]

We could break up pytest into two separate workflows, one for tests and one for coverage.

Current:

- name: Run tests
        # TODO: #8818 Re-enable quantum tests
        run: pytest
            --ignore=quantum/q_fourier_transform.py
            --ignore=project_euler/
            --ignore=scripts/validate_solutions.py
            --cov-report=term-missing:skip-covered
            --cov=. .

Proposed:

- name: Run tests
        # TODO: #8818 Re-enable quantum tests
        run: pytest
            --ignore=quantum/q_fourier_transform.py
            --ignore=project_euler/
            --ignore=scripts/validate_solutions.py
- name: Check test coverage
        run: pytest
            --cov-report=term-missing:skip-covered
            --cov=.

If this looks good to you, I can make this change in a separate PR.