docs: mention async fix in get_supported_components CHANGELOG entry

Author: tobixen

CHANGELOG.md

@@ -18,7 +18,9 @@ This project should adhere to [Semantic Versioning](https://semver.org/spec/v2.0
 
 * Reusing a `CalDAVSearcher` across multiple `search()` calls could yield inconsistent results: the first call would return only pending tasks (correct), but subsequent calls would change behaviour because `icalendar_searcher.Searcher.check_component()` mutated the `include_completed` field from `None` to `False` as a side-effect.  Fixed by passing a copy with `include_completed` already resolved to `filter_search_results()`, leaving the original searcher object unchanged.  Fixes https://github.com/python-caldav/caldav/issues/650
 * `_resolve_properties()` would crash with `UnboundLocalError` in production mode when a server returned an empty or unrecognisable PROPFIND response (the response paths did not match the request URI and there was more than one or zero paths returned).  Fixed by returning `{}` instead of falling through to an unbound variable.  Related: https://github.com/pycalendar/calendar-cli/issues/114
-* `Calendar.get_supported_components()` raised `KeyError` when the server did not include the `supported-calendar-component-set` property in its response.  RFC 4791 section 5.2.3 states this property is optional and that its absence means all component types are accepted; the method now returns the RFC default `["VEVENT", "VTODO", "VJOURNAL"]` in that case, trimmed by any known server limitations from the compatibility hints (e.g. if `save-load.todo` is `unsupported`, `VTODO` is excluded).  Fixes https://github.com/python-caldav/caldav/issues/653
+* `Calendar.get_supported_components()`
+  * raised `KeyError` when the server did not include the `supported-calendar-component-set` property in its response.  RFC 4791 section 5.2.3 states this property is optional and that its absence means all component types are accepted; the method now returns the RFC default `["VEVENT", "VTODO", "VJOURNAL"]` in that case, trimmed by any known server limitations from the compatibility hints (e.g. if `save-load.todo` is `unsupported`, `VTODO` is excluded).  Fixes https://github.com/python-caldav/caldav/issues/653
+  * async path returned an unawaited coroutine instead of the actual result.
 
 ## [3.1.0] - 2026-03-19