coil_def.dat needs update

[github-actions]

Context

This issue is automatically created because coil_def.dat between Brainstorm and MNE-Python have diverged.

Review Differences

• MNE-Python version: mne-python/mne/data/coil_def.dat.
• Brainstorm version: brainstorm3/toolbox/io/private/coil_def.dat.

Update changes

• Manually verify the changes and if needed, update coil_def.dat and create a pull request.