Bump com.diffplug.spotless from 6.25.0 to 7.1.0 #4809

Job	Run time
Run examples in 'native-sql-example' on PostgreSQL	2m 2s
Test with PostgreSQL	3m 31s
Test with Java 17	3m 31s
Test with MSSQLServer	4m 10s
Run examples in 'session-example' on MySQL	2m 11s
Run examples in 'session-example' on PostgreSQL	2m 9s
Test with Oracle	5m 5s
Test with MySQL	4m 28s
Test with Java 20	3m 33s
Test with MariaDB	4m 2s
Test with Java 25-ea	3m 32s
Test with CockroachDB	5m 48s
Test with Java 21	3m 33s
Test with Java 24	3m 45s
Test with Db2	18m 14s
Test with Java 26-ea	3m 48s
	1h 13m 22s

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