Update changelog

Author: brendan-kellam

CHANGELOG.md

@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Removed
-- Removed the Langfuse integration, along with the `langfuse` and `langfuse-vercel` dependencies and the `LANGFUSE_SECRET_KEY`, `NEXT_PUBLIC_LANGFUSE_PUBLIC_KEY`, and `NEXT_PUBLIC_LANGFUSE_BASE_URL` environment variables. [#1536](https://github.com/sourcebot-dev/sourcebot/pull/1536)
+- Removed the Langfuse integration. [#1536](https://github.com/sourcebot-dev/sourcebot/pull/1536)
 
 ### Fixed
 - Upgraded `brace-expansion` to `^1.1.17`/`^2.1.3`/`^5.0.8`. [#1527](https://github.com/sourcebot-dev/sourcebot/pull/1527)