Changes
* Cherry-picked some auth related improvements from v3-rc branch
* feat(auth): add KeyCloak authentication option (2866) (bee396a43)
* feat(auth): add GitHub Enterprise Authentication Provider (4463) (8727a5293)
* fix(auth): add nonce check for Cognito NextAuth provider (4401) (ed5c076a5)
**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.93.2...v2.93.3