Rework sqlite fk pragma handling #1424

Job	Run time
testsuite (8.4, sqlite)	24s
testsuite (8.1, sqlite)	38s
Coding Standard & Static Analysis	33s
testsuite (8.2, mysql)	55s
testsuite (8.4, mysql)	1m 2s
Windows - PHP 8.1 & SQL Server	2m 46s
testsuite (8.4, pgsql)	1m 0s
testsuite (8.1, pgsql)	1m 5s
testsuite (8.1, mysql)	40s
testsuite (8.1, sqlite, prefer-lowest)	28s
	9m 31s

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