fix: senders store in array_annotations dictionary

[drodarie]

Describe the work done

• Bump isort and black to new versions
• Store spike senders in the array_annotations dictionary of neo.SpikeTrain to allow merging

Maybe it should be a be considered as a breaking change?

List which issues this resolves:

see dbbs-lab/bsb-nest#18

Tasks

• Updated documentation

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📚 Documentation preview 📚: https://bsb--912.org.readthedocs.build/en/912/

[Helveg]

Is array_annotations part of some new neo version? I'm pretty sure it was just annotations before

[drodarie]

I checked Neo releases. It seems the feature was here since at least version 0.10 from Jul 27, 2021
Technically, using annotations is working but then the merging of SpikeTrain will be more complicated.
The main question that I have for each PR on this matter is: Is it a "breaking change" (or major) type of feature?

[Helveg]

Yes, it's a breaking change because the scripts people use to read BSB neo output will break :) For such "small" bugfixes that are technically breaking changes we could introduce a next branch where we pile up changes like this until we do the next major release, people that are affected by any of them can then clone and install that branch.

[filimarc]

We could think to merge in a separate branch for breaking changes