feat: Add binary_encode_vectors flag to AstraDBUploader

[awalker4]

AstraDB uploads vectors with their own binary format by default. This is more efficient, but it makes it hard to view and work with vectors directly in the UI. We can add a flag to turn off this encoding if you're willing to take the performance hit.

Tried adding an integration test, but vectors are also read in binary format so this doesn't verify anything. Instead, let's start a unit test suite for Astra to confirm that the option is being set.

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Note

Adds binary_encode_vectors flag to AstraDBUploader to optionally disable binary-encoded vectors and adds unit tests; bumps version to 1.2.22.

• Connectors · AstraDB:
  • Add binary_encode_vectors (default True) to AstraDBUploaderConfig.
  • In AstraDBUploader.run_data, when binary_encode_vectors=False, apply astrapy APIOptions/SerdesOptions via with_options to disable binary encoding before inserts.
• Tests:
  • New unit tests test_astradb.py verifying with_options usage when disabled and no call by default.
• Versioning/Docs:
  • Bump __version__ to 1.2.22.
  • Update CHANGELOG.md with the new feature.

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[potter-potter]

works great