v3.0.0b2

What's Changed

• fix(environments): correctly propagate client attribute by @hassiebp in https://github.com/langfuse/langfuse-python/pull/1188
• feat(core): add support for observation events by @hassiebp in https://github.com/langfuse/langfuse-python/pull/1189

Full Changelog: https://github.com/langfuse/langfuse-python/compare/v3.0.0-alpha.1...v3.0.0b2