Refactor backend of aggregate API to use gRPC

[tsmith023]

No description provided.

[orca-security-eu]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Secrets	0   0   0   0	View in Orca

[weaviate-git-bot]

Great to see you again! Thanks for the contribution.

beep boop - the Weaviate bot 👋🤖

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.69351% with 131 lines in your changes missing coverage. Please review.

Please upload report for BASE (dev/1.29@e414c99). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
weaviate/collections/grpc/shared.py	70.71%	53 Missing ⚠️
weaviate/collections/aggregations/aggregate.py	55.55%	24 Missing ⚠️
weaviate/collections/grpc/aggregate.py	80.00%	12 Missing ⚠️
weaviate/collections/aggregations/near_vector.py	47.61%	11 Missing ⚠️
weaviate/collections/classes/aggregate.py	76.47%	8 Missing ⚠️
weaviate/collections/aggregations/hybrid.py	54.54%	5 Missing ⚠️
weaviate/collections/aggregations/near_image.py	58.33%	5 Missing ⚠️
integration/test_collection_aggregate.py	75.00%	4 Missing ⚠️
weaviate/collections/aggregations/near_object.py	72.72%	3 Missing ⚠️
weaviate/collections/aggregations/near_text.py	72.72%	3 Missing ⚠️
... and 2 more

Additional details and impacted files

@@             Coverage Diff             @@
##             dev/1.29    #1522   +/-   ##
===========================================
  Coverage            ?   88.22%           
===========================================
  Files               ?      182           
  Lines               ?    15653           
  Branches            ?        0           
===========================================
  Hits                ?    13810           
  Misses              ?     1843           
  Partials            ?        0           

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