latest / Windows fails to install MDAnalysis

[orbeckst]

The MDAnalysis/install-mdanalysis@main action fails to install MDAnalysis on windows runners.

1. removes existing MDA, eg mdanalysistests-2.10.0-pyhd8ed1ab_0
2. generates installation command: mamba install -y -c conda-forge mdanalysis mdanalysistests
3. pyver=$(python -c 'import MDAnalysis; print(MDAnalysis.__version__)') fails with ModuleNotFoundError: No module named 'MDAnalysis'

Examples:

• GH action maintenance PathSimAnalysis#31 with https://github.com/MDAnalysis/PathSimAnalysis/actions/runs/28195599120/job/83521462431?pr=31
• updated actions in workflows Becksteinlab/propkatraj#83 (removed Windows from CI for now) with https://github.com/Becksteinlab/propkatraj/actions/runs/28069366298/job/83100518533

[orbeckst]

This may be related to #11.

Switching the installer to conda allowed the CI to also complete under windows, see
https://github.com/MDAnalysis/PathSimAnalysis/actions/runs/28196594091/job/83524891866?pr=31 (from PR MDAnalysis/PathSimAnalysis#31 )