Move changelog entry for drop of support to 'Deprecations and Removals'

CHANGES.md

@@ -42,6 +42,7 @@ Deprecations and Removals
 -------------------------
 - Replace `mock` package by its standard library version. ([\#11588](https://github.com/matrix-org/synapse/issues/11588))
+- Drop support for Python 3.6 and Ubuntu 18.04. ([\#11633](https://github.com/matrix-org/synapse/issues/11633))
 Internal Changes
@@ -77,7 +78,6 @@ Internal Changes
 - Improve OpenTracing support for requests which use a `ResponseCache`. ([\#11607](https://github.com/matrix-org/synapse/issues/11607))
 - Improve OpenTracing support for incoming HTTP requests. ([\#11618](https://github.com/matrix-org/synapse/issues/11618))
 - A number of improvements to opentracing support. ([\#11619](https://github.com/matrix-org/synapse/issues/11619))
-- Drop support for Python 3.6 and Ubuntu 18.04. ([\#11633](https://github.com/matrix-org/synapse/issues/11633))
 - Refactor the way that the `outlier` flag is set on events received over federation. ([\#11634](https://github.com/matrix-org/synapse/issues/11634))
 - Improve the error messages from  `get_create_event_for_room`. ([\#11638](https://github.com/matrix-org/synapse/issues/11638))
 - Remove redundant `get_current_events_token` method. ([\#11643](https://github.com/matrix-org/synapse/issues/11643))