Update last_event_id migration (#11266)

Author: antonpirker

docs/platforms/python/migration/1.x-to-2.x.mdx

@@ -50,7 +50,7 @@ The signature for the experimental Sentry Metrics callback function set with `be
 
 ## API
 
-The API function `last_event_id()` was removed. The last event ID is still returned by `capture_event()`, `capture_exception()`, and `capture_message()`.
+The API function `last_event_id()` was removed in 2.0.0, but was brought back by public demand in 2.2.0. The last event ID is returned by `capture_event()`, `capture_exception()`, and `capture_message()` in all SDK versions.
 
 ## Custom Instrumentation