Upgrade Vert.x to 4.5.15 (from 4.5.14) #4586

Job	Run time
Run examples in 'session-example' on PostgreSQL	1m 56s
Run examples in 'session-example' on MySQL	1m 55s
Test with PostgreSQL	3m 29s
Test with MSSQLServer	4m 19s
Run examples in 'native-sql-example' on PostgreSQL	1m 53s
Test with MySQL	4m 30s
Test with Db2	5m 28s
Test with CockroachDB	5m 10s
Test with MariaDB	3m 46s
Test with Java 21	3m 26s
Test with Java 20	3m 26s
Test with Oracle	5m 14s
Test with Java 25-ea	3m 38s
Test with Java 17	3m 33s
Test with Java 24	3m 25s
	55m 8s

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