fix timeout in test_alter_tiering (#19199)

Author: swalrus1

ydb/tests/olap/scenario/helpers/scenario_tests_helper.py

@@ -439,7 +439,7 @@ def execute_scheme_query(
     @classmethod
     @allure.step('Execute scan query')
     def execute_scan_query(
-        cls, yql: str, expected_status: ydb.StatusCode | Set[ydb.StatusCode] = ydb.StatusCode.SUCCESS
+        cls, yql: str, expected_status: ydb.StatusCode | Set[ydb.StatusCode] = ydb.StatusCode.SUCCESS, timeout=10
     ):
         """Run a scanning query on the tested database.
 
@@ -459,7 +459,7 @@ def execute_scan_query(
 
         allure.attach(yql, 'request', allure.attachment_type.TEXT)
         it = cls._run_with_expected_status(
-            lambda: YdbCluster.get_ydb_driver().table_client.scan_query(yql), expected_status
+            lambda: YdbCluster.get_ydb_driver().table_client.scan_query(yql, settings=ydb.BaseRequestSettings().with_timeout(timeout)), expected_status
         )
         rows = None
         ret = None

ydb/tests/olap/scenario/test_alter_tiering.py

@@ -245,6 +245,7 @@ def _loop_scan(
             sth.execute_scan_query(
                 f'SELECT MIN(writer) FROM `{sth.get_full_path(table)}`',
                 expected_status=expected_scan_status,
+                timeout=duration.seconds
             )
 
     def _loop_set_ttl(