Update CHANGELOG.md

Author: jpnurmi

CHANGELOG.md

@@ -16,6 +16,7 @@
   - `InvalidOperationException` potentially thrown during a race condition, especially in concurrent high-volume logging scenarios ([#4428](https://github.com/getsentry/sentry-dotnet/pull/4428))
 - Blocking calls are no longer treated as unhandled crashes ([#4458](https://github.com/getsentry/sentry-dotnet/pull/4458))
 - Only apply Session Replay masks to specific control types when necessary to avoid performance issues in MAUI apps with complex UIs ([#4445](https://github.com/getsentry/sentry-dotnet/pull/4445))
+- Upload linked PDB to fix symbolication for Mac Catalyst ([#4503](https://github.com/getsentry/sentry-dotnet/pull/4503))
 
 ### Dependencies