Update poetry.lock; Remove dataclasses dependency

[ShantanuNair]

• Dataclasses is no longer needed. It is a dependency needed only for Python < 3.7. Realtime, however requires Python >= 3.7, and so this dep isn't needed.

What kind of change does this PR introduce?

• Fixes [ERROR] AttributeError: module 'typing' has no attribute '_ClassVar', supabase-py on AWS Lambda #33 (comment) This issue comes up when using this library in AWS Lambda with serverless framework plugin serverless-python-requirements and this lock file makes it hard to deploy to Lambda with environments Python >= 3.7.

Additional context

• Already removed in realtime Remove dataclasses dependency realtime-py#48

[codecov]

Codecov Report

Base: 78.98% // Head: 78.98% // No change to project coverage 👍

Coverage data is based on head (398a0a3) compared to base (202c070).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #353   +/-   ##
========================================
  Coverage    78.98%   78.98%           
========================================
  Files            9        9           
  Lines          157      157           
========================================
  Hits           124      124           
  Misses          33       33           

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