test: Fix flaky webhook dispatch pagination test #715

Job	Run time
PR title check	5s
Checks / Actions lint check	33s
Checks / Spell check	6s
Checks / Package check	15s
Checks / Docstrings check	14s
Checks / Integration tests (3.11, ubuntu-latest)	2m 43s
Checks / Integration tests (3.14, ubuntu-latest)	2m 41s
Checks / Type check / Type check (3.13)	11s
Checks / Type check / Type check (3.12)	14s
Checks / Lint check / Lint check (3.14)	12s
Checks / Type check / Type check (3.11)	10s
Checks / Lint check / Lint check (3.11)	13s
Checks / Lint check / Lint check (3.13)	10s
Checks / Doc check / Docs check	1m 30s
Checks / Lint check / Lint check (3.12)	13s
Checks / Type check / Type check (3.14)	16s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.11)	48s
Checks / Unit tests / Unit tests (windows-latest, 3.12)	1m 17s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.13)	45s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.12)	44s
Checks / Unit tests / Unit tests (windows-latest, 3.11)	1m 20s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.14)	51s
Checks / Unit tests / Unit tests (windows-latest, 3.13)	1m 11s
Checks / Unit tests / Unit tests (windows-latest, 3.14)	57s
	17m 39s

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