Exclude dotted indices from settings pull (#43306)

* Exclude dotted indices from settings pull

* Added changelog entry

Author: 3kt

CHANGELOG.next.asciidoc

@@ -482,6 +482,7 @@ otherwise no tag is added. {issue}42208[42208] {pull}42403[42403]
 - Log every 401 response from Kubernetes API Server {pull}42714[42714]
 - Add a new `match_by_parent_instance` option to `perfmon` module. {pull}43002[43002]
 - Changed the Elasticsearch module behavior to only pull settings from non-system indices. {pull}43243[43243]
+- Exclude dotted indices from settings pull in Elasticsearch module. {pull}43306[43306]
 
 *Metricbeat*
 - Add benchmark module {pull}41801[41801]

metricbeat/module/elasticsearch/index/data.go

@@ -192,7 +192,7 @@ func eventsMapping(r mb.ReporterV2, httpClient *helper.HTTP, info elasticsearch.
 		return fmt.Errorf("failure retrieving cluster state from Elasticsearch: %w", err)
 	}
 
-	indicesSettingsPattern := "*"
+	indicesSettingsPattern := "*,-.*"
 	indicesSettingsFilterPaths := []string{"*.settings.index.creation_date", "*.settings.index.**._tier_preference", "*.settings.index.version.created"}
 	indicesSettings, err := elasticsearch.GetIndexSettings(httpClient, httpClient.GetURI(), indicesSettingsPattern, indicesSettingsFilterPaths)
 	if err != nil {