Langfuse

What's Changed
* parse server errors by maxdeichmann in https://github.com/langfuse/langfuse-python/pull/189
* Fix azure langchain by maxdeichmann in https://github.com/langfuse/langfuse-python/pull/191


**Full Changelog**: https://github.com/langfuse/langfuse-python/compare/v1.7.2...v1.7.3

What's Changed
- chore: upgrade container image and CI to Node 20
- ci: matrix test on Node 18 and 20 as some serverless deployments use Node 18
- ci: add staging environment

**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.7.0...v1.7.2

What's Changed
* support new azure langchain integration by maxdeichmann in https://github.com/langfuse/langfuse-python/pull/185


**Full Changelog**: https://github.com/langfuse/langfuse-python/compare/v1.7.0...v1.7.1

What's Changed
* feat(api): add projects endpoint to check valid API keys in SKDs by maxdeichmann in https://github.com/langfuse/langfuse/pull/569


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.6.0...v1.7.0

What's Changed
* export openai client direclty from langchain by maxdeichmann in https://github.com/langfuse/langfuse-python/pull/183


**Full Changelog**: https://github.com/langfuse/langfuse-python/compare/v1.6.0...v1.6.1

What's Changed

* feat(UI): "does not contain" filter on string fields by marcklingen in https://github.com/langfuse/langfuse/pull/562
* fix(core): for failed events return correct errors on ingestion by maxdeichmann in https://github.com/langfuse/langfuse/pull/566
* feat(auth): show SSO options on /auth/sign-up by marcklingen in https://github.com/langfuse/langfuse/pull/564
* chore(deps): upgrade trpc and posthog by marcklingen in https://github.com/langfuse/langfuse/pull/560
* feat(cloud): add comment on signup re demo account by marcklingen in https://github.com/langfuse/langfuse/pull/565
* feat(cloud): add data region switch for langfuse cloud by marcklingen in https://github.com/langfuse/langfuse/pull/558
* feat(telemetry): count users by marcklingen in https://github.com/langfuse/langfuse/pull/563
* feat(telemetry): include version number by marcklingen in https://github.com/langfuse/langfuse/pull/567


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.5.1...v1.6.0