devel/py-cookiecutter: update to 2.7.1

Switch to pep517 build, using the pyproject default backend of
setuptools.

Regenerate patches for tests: replace /bin/bash with /bin/sh
generally.

Update RUN_DEPENDS according to pyproject.toml.

Changes: https://github.com/cookiecutter/cookiecutter/blob/main/CHANGELOG/2.7.1.md
Changes: https://github.com/cookiecutter/cookiecutter/blob/main/CHANGELOG/2.7.0.md
Reported by: portscout, repology