chore: update openmm version

[thempel]

Old openMM version seems broken on pypi, compare linked issue below. Upgrading to newest one.

Test with a fresh environment succeeded.

mamba create -n bioemu-test python==3.12
mamba activate bioemu-test
pip install ".[md]"

python -m openmm.testInstallation

closes #191

[github-actions]

Summary

Summary

Generated on:	01/22/2026 - 13:20:50
Parser:	Cobertura
Assemblies:	6
Classes:	26
Files:	26
Line coverage:	74.2% (2166 of 2918)
Covered lines:	2166
Uncovered lines:	752
Coverable lines:	2918
Total lines:	9615
Covered branches:	0
Total branches:	0
Method coverage:	Feature is only available for sponsors

Coverage

src.bioemu - 87.3%

Name	Line	Branch
src.bioemu	87.3%	****
init.py	100%
chemgraph.py	100%
convert_chemgraph.py	98%
denoiser.py	98.1%
get_embeds.py	68.6%
md_utils.py	85.8%
model_utils.py	78%
models.py	94.1%
run_hpacker.py	0%
sample.py	88.3%
sde_lib.py	86.6%
seq_io.py	100%
shortcuts.py	100%
sidechain_relax.py	77.2%
so3_sde.py	91.7%
steering.py	76.7%
structure_module.py	84.3%
utils.py	65.6%

src.bioemu.colabfold_setup -

Name	Line	Branch
src.bioemu.colabfold_setup	****	****
init.py

src.bioemu.hpacker_setup - 58.8%

Name	Line	Branch
src.bioemu.hpacker_setup	58.8%	****
init.py
setup_hpacker.py	58.8%

src.bioemu.openfold.np - 44%

Name	Line	Branch
src.bioemu.openfold.np	44%	****
protein.py	31.2%
residue_constants.py	60.7%

src.bioemu.openfold.utils - 50.1%

Name	Line	Branch
src.bioemu.openfold.utils	50.1%	****
rigid_utils.py	50.1%

src.bioemu.training - 100%

Name	Line	Branch
src.bioemu.training	100%	****
foldedness.py	100%
loss.py	100%