fix CHANGELOG release tag for 0.9.3

Author: Lance-Drane

CHANGELOG.md

@@ -27,5 +27,6 @@ Initial reorganization of SDK packaging.
 - Added new argument to `ControlPlaneManager.add_subscription_channel()` which specifies a queue name to use.
 - Add `is_root` option to `ControlPlaneConfig` in preparation for Registry Service.
 
+[0.9.3]: https://github.com/INTERSECT-SDK/intersect-python-common/releases/tag/0.9.3
 [0.9.2]: https://github.com/INTERSECT-SDK/intersect-python-common/releases/tag/0.9.2
 [0.9.1]: https://github.com/INTERSECT-SDK/intersect-python-common/releases/tag/0.9.1