[CLN]: Improve maybe_cast_one_to_many function with types for Document, Uri, and ID to be more robust

### Describe the problem

https://github.com/chroma-core/chroma/pull/2686#discussion_r1735031927

### Describe the proposed solution

Be more explicit with types for Document, Uri and ID instead of using a generic isinstance(target, str)

### Alternatives considered

_No response_

### Importance

nice to have

### Additional Information

_No response_