Deprecate service list_events in favor of get_events

- The service `calendar.list_events` is deprecated in favor or `calendar.get_events`
- in 2023.12. Scheduled to be removed in 2024.6
- This PR adds a note that this service is deprecated
- The docs for `get_events` are a topic for a separate PR
- Unlike list_events, get_events supports multiple responses
- related parent PR in core: home-assistant/core#102481

source/_docs/scripts/service-calls.markdown

@@ -133,13 +133,12 @@ Examples of service response data are upcoming calendar events for the next week
 
 Templates can also be used for handling response data. The service call can specify
 a `response_variable`. This is the [variable](/docs/scripts/#variables)
-that contains the response data. You can define any name for your `response_variable`. This example calls a service and stores the response in 
-the variable called `agenda`.
+that contains the response data. You can define any name for your `response_variable`. This example calls a service and stores the response in the variable called `agenda`.
 
 {% raw %}
 
 ```yaml
-service: calendar.list_events
+service: calendar.get_events
 target:
   entity_id: calendar.school
 data:

source/_integrations/calendar.markdown

@@ -194,6 +194,8 @@ data:
 
 ### Service `calendar.list_events`
 
+This service has been **deprecated** in Home Assistant version 2023.12. It will be removed in June 2024. Please use `calendar.get_events` instead.
+
 This service populates [Response Data](/docs/scripts/service-calls#use-templates-to-handle-response-data)
 with calendar events within a date range.
 
@@ -249,3 +251,5 @@ data:
     </p>
 ```
 {% endraw %}
+
+