move set_eeg_montage after drop_channels

[dnacombo]

to match config statement:

# !!! warning
#     If the data contains channel names that are not part of the template montage, the
#     pipeline run will fail with an error message. You must either pick a different
#     montage or remove those channels via
#     [`drop_channels`][mne_bids_pipeline._config.drop_channels] to continue.

Before merging …

• Changelog has been updated (docs/source/dev.md.inc)

[larsoner]

Looks reasonable to me! Can you add a docs/source/dev.md.inc line about the change in the order of these operations? Or I can do it quickly if you'd prefer. I just want some note in there in case there are some unexpected results.

And I assume this fixes things for your dataset(s)?