Split CI workflow to prevent schedule inactivity from pausing push/PR… #1657

Job	Run time
CI-CD / CI (ubuntu-latest, 25, PostgreSQL-11) / Run tests	4m 33s
CI-CD / CI (ubuntu-latest, 25, Oracle-23) / Run tests	2m 11s
CI-CD / CI (ubuntu-latest, 11, PostgreSQL-9) / Run tests	4m 41s
CI-CD / CI (ubuntu-latest, 11, MySQL-5.6) / Run tests	2m 12s
CI-CD / CI (ubuntu-latest, 11, MySQL-8.0) / Run tests	2m 22s
CI-CD / CI (ubuntu-latest, 11, MySQL-5.7) / Run tests	2m 10s
CI-CD / CI (ubuntu-latest, 11, MariaDB-10.4) / Run tests	2m 18s
CI-CD / CI (ubuntu-latest, 11, MSSQL-2017-latest) / Run tests	1m 33s
CI-CD / CI (ubuntu-latest, 11, MSSQL-2019-latest) / Run tests	1m 38s
CI-CD / CI (ubuntu-latest, 11, PostgreSQL-10) / Run tests	4m 44s
CI-CD / CI (ubuntu-latest, 25, MySQL-5.7) / Run tests	2m 15s
CI-CD / CI (ubuntu-latest, 25, MSSQL-2019-latest) / Run tests	1m 42s
CI-CD / CI (ubuntu-latest, 11, SQL-templates) / Run tests	5m 0s
CI-CD / CI (ubuntu-latest, 11, PostgreSQL-11) / Run tests	4m 49s
CI-CD / CI (ubuntu-latest, 25, MariaDB-10.4) / Run tests	2m 14s
CI-CD / CI (ubuntu-latest, 11, DB2-11.5) / Run tests	4m 59s
CI-CD / Deploy to OSSRH	-1s
	49m 20s

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