perf: Don't construct Config object twice #3704

Job	Run time
gate	8s
Playwright setup	4m 50s
Playwright tests for installer	12m 9s
Playwright tests 6 / 7	18m 34s
Playwright tests 3 / 7	9m 11s
Playwright tests 4 / 7	16m 42s
Playwright tests 2 / 7	12m 52s
Playwright tests 5 / 7	9m 46s
Playwright tests 7 / 7	9m 16s
Playwright tests 1 / 7	6m 21s
playwright-test-summary	5s
merge-reports	57s
	1h 40m 51s

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