[Feature Request]: TTL for entries

### Describe the problem

Does ChromaDB support TTL for automatically evicting entries? It would be greatly beneficial if it did, as runtime servers could utilize TTL to manage memory more efficiently.

### Describe the proposed solution

Include a field in each entry akin to metadata and initiate cleanup if the TTL exceeds the modified time.

### Alternatives considered

_No response_

### Importance

would make my life easier

### Additional Information

I can help implement this feature.