Retry final teardown

ingest/src/test/java/com/microsoft/azure/kusto/ingest/E2ETest.java

@@ -131,17 +131,11 @@ class E2ETest {
     @AfterAll
     public static void tearDown() {
         try {
-            queryClient.executeToJsonResult(databaseName, String.format(".drop table %s ifexists", tableName));
+            new ExponentialRetry<DataServiceException, DataClientException>(2).execute(attempt -> queryClient.execute(databaseName, String.format(".drop table %s ifexists", tableName)));
             ingestClient.close();
             managedStreamingIngestClient.close();
         } catch (Exception ex) {
-            try {
-                queryClient.executeToJsonResult(databaseName, String.format(".drop table %s ifexists", tableName));
-                ingestClient.close();
-                managedStreamingIngestClient.close();
-            } catch (Exception ex2) {
-                Assertions.fail("Failed to drop table", ex2);
-            }
+            Assertions.fail("Failed to drop table", ex);
         }
     }