Elasticsearch: Add tracing to data source (#74750)

* Elasticsearch: Add tracing do data source

* Fix tests

* Address feedback

* Update pkg/tsdb/elasticsearch/response_parser.go

Co-authored-by: Sven Grossmann <sven.grossmann@grafana.com>

* Update pkg/tsdb/elasticsearch/response_parser.go

Co-authored-by: Sven Grossmann <sven.grossmann@grafana.com>

* Track error across both spans

* Add span for decoding of response

* Fix test

* Update setting of errors + fix test

---------

Co-authored-by: Sven Grossmann <sven.grossmann@grafana.com>

pkg/tsdb/elasticsearch/querydata_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 
 	"github.com/grafana/grafana/pkg/infra/log"
+	"github.com/grafana/grafana/pkg/infra/tracing"
 	es "github.com/grafana/grafana/pkg/tsdb/elasticsearch/client"
 )
 
@@ -138,7 +139,7 @@ func queryDataTestWithResponseCode(queriesBytes []byte, responseStatusCode int,
 		return nil
 	})
 
-	result, err := queryData(context.Background(), queries, dsInfo, log.New("test.logger"))
+	result, err := queryData(context.Background(), queries, dsInfo, log.New("test.logger"), tracing.NewFakeTracer())
 	if err != nil {
 		return queryDataTestResult{}, err
 	}