Fix tags.

Author: SebastianStehle

src/PhenX.EntityFrameworkCore.BulkInsert/BulkInsertProviderBase.cs

@@ -35,7 +35,7 @@ public virtual async IAsyncEnumerable<T> BulkInsertReturnEntities<T>(
     {
         using var activity = Telemetry.ActivitySource.StartActivity("BulkInsertReturnEntities");
         activity?.AddTag("tableName", tableInfo.TableName);
-        activity?.AddTag("synchronous", true);
+        activity?.AddTag("synchronous", sync);
 
         var connection = await context.GetConnection(sync, ctk);
         try
@@ -76,7 +76,7 @@ public virtual async Task BulkInsert<T>(
     {
         using var activity = Telemetry.ActivitySource.StartActivity("BulkInsert");
         activity?.AddTag("tableName", tableInfo.TableName);
-        activity?.AddTag("synchronous", true);
+        activity?.AddTag("synchronous", sync);
 
         var connection = await context.GetConnection(sync, ctk);
         try
@@ -133,7 +133,7 @@ private async Task<string> PerformBulkInsertAsync<T>(
 
         using var activity = Telemetry.ActivitySource.StartActivity("Insert");
         activity?.AddTag("tempTable", tempTableRequired);
-        activity?.AddTag("synchronous", true);
+        activity?.AddTag("synchronous", sync);
 
         await BulkInsert(false, context, tableInfo, entities, tableName, properties, options, ctk);
         return tableName;