0.11.4

## What's Changed
* feat: deprecate legacy paths for azure and together by @carenthomas in https://github.com/letta-ai/letta/pull/3987
* feat: introduce asyncio shield to prevent stream timeouts by @carenthomas in https://github.com/letta-ai/letta/pull/3992
* feat: record step metrics to table by @@jnjpng in https://github.com/letta-ai/letta/pull/3887

**Full Changelog**: https://github.com/letta-ai/letta/compare/0.11.3...0.11.4