Disable OracleConnectionTest#testConnectNoLeak tests (#1482) #1001

Job	Run time
CI (ubuntu-latest, 11, DB2-11.5) / Run tests	11m 20s
CI (ubuntu-latest, 11, MariaDB-10.4) / Run tests	1m 53s
CI (ubuntu-latest, 11, MSSQL-2017-latest) / Run tests	1m 22s
CI (ubuntu-latest, 11, MSSQL-2019-latest) / Run tests	1m 17s
CI (ubuntu-latest, 11, MySQL-5.7) / Run tests	1m 51s
CI (ubuntu-latest, 11, MySQL-8.0) / Run tests	1m 47s
CI (ubuntu-latest, 11, MySQL-5.6) / Run tests	2m 17s
CI (ubuntu-latest, 11, PostgreSQL-10) / Run tests	4m 5s
CI (ubuntu-latest, 11, PostgreSQL-9) / Run tests	4m 12s
CI (ubuntu-latest, 11, SQL-templates) / Run tests	5m 56s
CI (ubuntu-latest, 11, PostgreSQL-11) / Run tests	3m 37s
CI (ubuntu-latest, 21, MariaDB-10.4) / Run tests	2m 0s
CI (ubuntu-latest, 21, MSSQL-2019-latest) / Run tests	1m 24s
CI (ubuntu-latest, 21, MySQL-5.7) / Run tests	1m 48s
CI (ubuntu-latest, 21, Oracle-23) / Run tests	1m 41s
CI (ubuntu-latest, 21, PostgreSQL-11) / Run tests	3m 36s
Deploy to OSSRH / Deploy to OSSRH	40s
Deploy to OSSRH / Deploy (Oracle) to OSSRH	28s
	51m 14s

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