[BUG] Ann calculation in tests after collection config + handle none in collection config

[sanketkedia]

Description of changes

Summarize the changes made by this PR.

• Improvements & Bug fixes
  • ANN accuracy calculation is incorrect after collection configuration feature since it still uses the space returned in collection metadata so it will always be L2. Changed to use the space returned in collection config
  • If you specify None for collection_config then it always defaults to hnsw currently but it should default to whatever is set in the yaml config. fixed this
• New functionality
  • ...

Test plan

How are these changes tested?

• Tests pass locally with pytest for python, yarn test for js, cargo test for rust

Documentation Changes

None

[github-actions]

Reviewer Checklist

Please leverage this checklist to ensure your code review is thorough before approving

Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[sanketkedia]

• [ENH] Turn on spann by default #4351
• [BUG] Ann calculation in tests after collection config + handle none in collection config #4350 👈 (View in Graphite)
• [BUG] Handle uninitialized spann segment reader #4348
• [BUG] Fix race between hnsw load and hnsw purge #4345
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.