Replace `threading.Lock` with `asyncio.Lock` when batching to avoid deadlocks

[tsmith023]

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 87.23404% with 6 lines in your changes missing coverage. Please review.

Project coverage is 90.08%. Comparing base (a373ee6) to head (252d86f). Report is 218 commits behind head on main.

Files with missing lines	Patch %	Lines
weaviate/collections/batch/base.py	88.88%	3 Missing :warning:
weaviate/collections/classes/batch.py	82.35%	3 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1270      +/-   ##
==========================================
- Coverage   93.98%   90.08%   -3.91%     
==========================================
  Files         221      175      -46     
  Lines       21332    15081    -6251     
==========================================
- Hits        20048    13585    -6463     
- Misses       1284     1496     +212     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[weaviate-git-bot]

Great to see you again! Thanks for the contribution.

beep boop - the Weaviate bot 👋🤖

PS:
Are you already a member of the Weaviate Slack channel?

[tsmith023]

Closing in favour of https://github.com/weaviate/weaviate-python-client/pull/1371