[hotfix][source-connector/mysql] Fix conflicts after flink version bumped to 1.19 (#3748)

Author: leonardBang

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-mysql-cdc/src/test/java/org/apache/flink/cdc/connectors/mysql/table/MySqlConnectorShardingTableITCase.java

@@ -196,7 +196,7 @@ public void testShardingTablesWithTinyInt1() throws Exception {
                 new String[] {
                     "+I[1, 1]", "+I[2, 0]", "+I[3, 1]", "+I[4, 0]", "+I[5, 1]", "+I[6, 0]",
                 };
-        List<String> actual = TestValuesTableFactory.getResults("sink");
+        List<String> actual = TestValuesTableFactory.getResultsAsStrings("sink");
         assertEqualsInAnyOrder(Arrays.asList(expected), actual);
         result.getJobClient().get().cancel().get();
     }