Update set output usage in GH workflows (#2379) #1452

Job	Run time
Windows - PHP 8.1 & SQL Server	2m 58s
Coding Standard & Static Analysis	33s
testsuite (8.1, mysql)	49s
testsuite (8.4, sqlite)	32s
testsuite (8.4, pgsql)	46s
testsuite (8.1, sqlite)	28s
testsuite (8.1, pgsql)	53s
testsuite (8.2, mysql)	1m 2s
testsuite (8.4, mysql)	57s
testsuite (8.1, sqlite, prefer-lowest)	23s
	9m 21s

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