py-pypiserver: updated to 2.1.1

2.1.1 (2024-04-24)
- 31c9cf1 FIX: deprecated `setuptools.py` when building in `package.sh`
- 2619c17 FIX: use the right env variables in `release-tag` workflow

2.1.0 (2024-04-24)
- d588913 ENH: Bump github action versions and add multiarch support
- a558dbc ENH: Handle tar.xz archives
- 2f0a56c FIX: support Python 3.12
- 84bf12c MAINT: make the last supported python version explicit in `ci.yaml`
- 946fbfe MAINT: Update setuptools requirement from <62.0.0,>=40.0 to >=40.0,<70.0.0 in /requirements
- 50c7a78 MAINT: add tar xz test case

(adam)