test: fix flaky test test_isolation_cookies for playwright crawler #249

Job	Run time
PR title check	6s
Code checks / Spell check	6s
Code checks / Actions lint check	32s
Doc checks / Doc checks / Docs check	1m 55s
Code checks / Lint check / Lint check (3.12)	34s
Code checks / Lint check / Lint check (3.11)	31s
Code checks / Lint check / Lint check (3.13)	33s
Code checks / Type check / Type check (3.11)	24s
Code checks / Type check / Type check (3.14)	34s
Code checks / Type check / Type check (3.10)	26s
Code checks / Lint check / Lint check (3.10)	27s
Code checks / Type check / Type check (3.12)	31s
Code checks / Type check / Type check (3.13)	29s
Code checks / Lint check / Lint check (3.14)	26s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	4m 31s
Tests / Unit tests / Unit tests (windows-latest, 3.10)	6m 22s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	6m 23s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	5m 48s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	3m 24s
Tests / Unit tests / Unit tests (macos-latest, 3.12)	8m 11s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	7m 40s
Tests / Unit tests / Unit tests (macos-latest, 3.10)	4m 59s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	4m 23s
Tests / Unit tests / Unit tests (macos-latest, 3.11)	8m 25s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.10)	4m 34s
Tests / Unit tests / Unit tests (macos-latest, 3.13)	2m 15s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	5m 8s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	6m 28s
Tests / Unit tests / Unit tests (macos-latest, 3.14)	6m 1s
	1h 32m 6s

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