[DRAFT] Update scheduler for testing #354

Job	Run time
Run examples in 'session-example' on MySQL	1m 50s
Test with MariaDB	3m 11s
Run examples in 'session-example' on PostgreSQL	1m 49s
Test with MySQL	3m 57s
Test with Java 17	2m 59s
Run examples in 'native-sql-example' on PostgreSQL	2m 4s
Test with PostgreSQL	3m 12s
Test with Java 20	3m 12s
Test with MSSQLServer	3m 44s
Test with Java 21	3m 15s
Test with CockroachDB	6m 15s
Test with Java 23	3m 31s
Test with Db2	5m 0s
Test with Java 24-ea	3m 13s
Test with Oracle	4m 42s
Test with Java 25-ea	3m 19s
	55m 13s

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