[ENH] Export Collection type directly

[itaismith]

Description of changes

Users want to use "Collection" for type annotations, but it is not being exported from the js-client.

Test plan

How are these changes tested?

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

Documentation Changes

N/A

[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)

[galkleinman]

Hi @itaismith, @jeffchuber, and thanks for this contribution @itaismith 💪

Any plans to merge and release this one anytime soon? The issue it solved kinda crashing our SDK (traceloop-sdk) and we're looking forward for this one to be merged.

[tazarov]

@galkleinman, I think the failure in CI is due to an small scope creep related to #3216. Where we change the semantics of list_collection.

@itaismith, does it make sense to separate the two changes or is #3216 landing in the 0.5.x train alongside this one?

[itaismith]

@tazarov We're going to land #3216 and this one right after!