Issue Description

According to section Configuring setuptools using pyproject.toml files of the setuptools documentation, the minimal version is 77.0.3:

Support for project.license-files and SPDX license expressions in project.license (PEP 639) were introduced in version 77.0.0.

According to license and license-files in this guide, the minimal version is 77.0.3:

build backend versions that introduced PEP 639 support

hatchling	setuptools	flit-core [2]	pdm-backend	poetry-core
1.27.0	77.0.3	3.12	2.4.0	not yet

I understand that patch version 3 might simply fix early bugs, but I would prefer consistency. Should we modify the setuptools guide or the packaging guide? Commit faf4c7d doesn't explain why 77.0.3 should be preferred over 77.0.0 (or 77.0.1 since 77.0.0 appears to have been yanked).

Code of Conduct

• I am aware that participants in this repository must follow the PSF Code of Conduct.