chore: Improve phpunit performance #5794

Job	Run time
gate	8s
Playwright setup	2m 46s
Playwright tests 1 / 8	9m 39s
Playwright tests for installer	8m 12s
Playwright tests 4 / 8	8m 0s
Playwright tests 2 / 8	9m 33s
Playwright tests 3 / 8	7m 10s
Playwright tests 5 / 8	10m 54s
Playwright tests 6 / 8	10m 7s
Playwright tests 7 / 8	12m 29s
Playwright tests 8 / 8	10m 55s
playwright-test-summary	5s
merge-reports	49s
	1h 30m 47s

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