[DON'T MERGE] Hibernate Reactive 3.0 preview #4079

Job	Run time
Run examples in 'session-example' on MySQL	1m 52s
Test with MariaDB	4m 5s
Run examples in 'session-example' on PostgreSQL	1m 52s
Run examples in 'native-sql-example' on PostgreSQL	1m 49s
Test with Java 17	3m 24s
Test with MySQL	4m 51s
Test with Java 20	3m 11s
Test with PostgreSQL	3m 15s
Test with Java 21	3m 12s
Test with MSSQLServer	3m 38s
Test with Java 23	3m 37s
Test with CockroachDB	6m 34s
Test with Java 24-ea	3m 17s
Test with Db2	5m 1s
Test with Oracle	5m 26s
	55m 4s

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