Test error in GitHub workflow

[dofuuz]

There is wrong YAML formatting in:

nanobind_example/.github/workflows/pip.yml

Lines 33 to 34 in 26ff4b2

	run: python -m pip install pytest
	pip install --verbose .

This runs

python -m pip install pytest pip install --verbose .

and tries to install pytest, pip, install, ..
install package is removed from PyPI and causing error.
pypi/support#451

This should be fixed something like this:

      run: |
        python -m pip install pytest
        pip install --verbose .

[wjakob]

Fixed, thank you!