fix examples

Author: KirillKurdyukov

examples/src/BasicExample/ReadTable.cs

@@ -6,7 +6,7 @@ internal partial class BasicExample
 {
     private async Task ReadTable()
     {
-        var readStream = Client.ReadTable(
+        var readStream = await Client.ReadTable(
             FullTablePath("seasons"),
             new ReadTableSettings
             {

examples/src/BasicExample/ScanQuery.cs

@@ -18,7 +18,7 @@ FROM episodes
                 ORDER BY series_id, season_id;
             ";
 
-        var scanStream = Client.ExecuteScanQuery(
+        var scanStream = await Client.ExecuteScanQuery(
             query,
             new Dictionary<string, YdbValue>
             {

examples/src/QueryExample/QueryExample.cs

@@ -231,7 +231,7 @@ private async Task StreamSelect()
 
         await Client.DoTx(async tx =>
         {
-            await foreach (var part in tx.Stream(query, commit: true))
+            await foreach (var part in await tx.Stream(query, commit: true))
             {
                 foreach (var row in part.ResultSet!.Rows)
                 {
@@ -316,7 +316,7 @@ private async Task ReadAllResultSets()
         var resultSets = await Client.DoTx(async tx =>
         {
             var resultSets = new List<Value.ResultSet>();
-            await foreach (var resultSet in tx.Stream(query, commit: true))
+            await foreach (var resultSet in await tx.Stream(query, commit: true))
             {
                 resultSets.Add(resultSet.ResultSet!);
             }