Test perf

[sneakers-the-rat]

Fix: #172

• raise default stdout log level to ERROR in tests, which is hella expensive and unused
• add a n_frame param to capture to only capture a few frames when that's all we care about
• decrease the timeout before we kill capture processes

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📚 Documentation preview 📚: https://miniscope-io--191.org.readthedocs.build/en/191/

[sneakers-the-rat]

alright increased test perf mostly by disabling logs and not reading things unnecessarily.

like ~2m improvement.

the biggest perf barrier remaining is just the time it takes to a) spawn processes and b) that takes a long time because our import time takes eons because of pydantic.

so once we transition to noob we can have a switch for running the streamdaq synchronously for testing (and i'm also not sure how much of a perf benefit multiprocessing is here anyway) then we can bring that down further.