[Airflow] Enable TSDB (#6776)

* [Airflow] Enable TSDB

packages/airflow/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "0.4.0"
+  changes:
+    - description: Enable time series data streams for the metrics datasets. This dramatically reduces storage for metrics and is expected to progressively improve query performance. For more details, see https://www.elastic.co/guide/en/elasticsearch/reference/current/tsds.html.
+      type: enhancement
+      link: https://github.com/elastic/integrations/pull/6776
 - version: "0.3.1"
   changes:
     - description: Remove metric_type mapping for 'airflow.scheduler.heartbeat' field and adjust the dashboard to visualize this field using 'last_value'.

packages/airflow/data_stream/statsd/manifest.yml

@@ -6,3 +6,5 @@ streams:
     enabled: true
     title: Airflow metrics
     description: Collect Airflow metrics
+elasticsearch:
+  index_mode: "time_series"

packages/airflow/manifest.yml

@@ -1,14 +1,14 @@
 name: airflow
 title: Airflow
-version: "0.3.1"
+version: "0.4.0"
 description: Airflow Integration.
 type: integration
 format_version: 1.0.0
 license: basic
 categories:
   - observability
 conditions:
-  kibana.version: "^8.5.0"
+  kibana.version: "^8.9.0"
 icons:
   - src: /img/airflow.svg
     title: Airflow logo