v3.35.3

What's Changed

• fix(langchain): cached token usage details by @hassiebp in https://github.com/langfuse/langfuse-js/pull/512
• fix(openai): preserve return types for wrapped methods by @hassiebp in https://github.com/langfuse/langfuse-js/pull/513

Full Changelog: https://github.com/langfuse/langfuse-js/compare/v3.35.2...v3.35.3