chore: add baseSepolia to lab #6457

Job	Run time
test	2m 8s
Bundle size check	2m 34s
code_style (lint)	2m 45s
code_style (prettier)	1m 44s
code_style (typecheck)	2m 1s
code_style (build:sample-apps)	3m 35s
code_style (danger)	1m 42s
ui-test / Playwright Tests (1, 5)	7m 11s
ui-test / Playwright Tests (2, 5)	7m 18s
ui-test / Playwright Tests (3, 5)	6m 51s
ui-test / Playwright Tests (4, 5)	11m 15s
ui-test / Playwright Tests (5, 5)	7m 48s
ui-test / setup_playwright_runners / setup-runners	1m 13s
	58m 5s

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