feat(outputs.azure_data_explorer): Set user agent string (#14047)

plugins/outputs/azure_data_explorer/azure_data_explorer.go

@@ -17,6 +17,7 @@ import (
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/config"
+	"github.com/influxdata/telegraf/internal"
 	"github.com/influxdata/telegraf/internal/choice"
 	"github.com/influxdata/telegraf/plugins/outputs"
 	"github.com/influxdata/telegraf/plugins/serializers"
@@ -58,6 +59,8 @@ func (*AzureDataExplorer) SampleConfig() string {
 // Initialize the client and the ingestor
 func (adx *AzureDataExplorer) Connect() error {
 	conn := kusto.NewConnectionStringBuilder(adx.Endpoint).WithDefaultAzureCredential()
+	// Since init is called before connect, we can set the connector details here including the type. This will be used for telemetry and tracing.
+	conn.SetConnectorDetails("Telegraf", internal.ProductToken(), "", "", false, "")
 	client, err := kusto.New(conn)
 	if err != nil {
 		return err