test: refactor `ConfigCheckTest` #12519

Job	Run time
Setup PHP Version for Code Coverage	1s
Others (8.1) / Sanity Tests	2m 21s
Others (8.2) / Sanity Tests	2m 35s
Others (8.3) / Sanity Tests	2m 17s
SeparateProcess	0s
CacheLive	0s
DatabaseLive	0s
Upload coverage results to Coveralls	0s
	7m 14s

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