update changelog

Author: Zylphrex

CHANGELOG.md

@@ -36,6 +36,7 @@
 - Classify macOS frames from an application as application frames. ([#604](https://github.com/getsentry/vroom/pull/604))
 - Return number of occurrences in flamegraph. ([#622](https://github.com/getsentry/vroom/pull/622), [#625](https://github.com/getsentry/vroom/pull/625))
 - Use function duration when computing metrics ([#627](https://github.com/getsentry/vroom/pull/627), [#628](https://github.com/getsentry/vroom/pull/628), [#629](https://github.com/getsentry/vroom/pull/629), [#630](https://github.com/getsentry/vroom/pull/630))
+- Remove Unused metrics endpoint ([#633](https://github.com/getsentry/vroom/pull/633))
 
 **Bug Fixes**: