chore(deps): update actions/checkout action to v7 #824

Job	Run time
PR title check	3s
Checks / Actions lint check	35s
Checks / E2E tests (3.14, ubuntu-latest)	5m 36s
Checks / Integration tests (3.14, ubuntu-latest)	2m 12s
Checks / Package check	23s
Checks / Spell check	8s
Checks / E2E tests (3.11, ubuntu-latest)	5m 41s
Checks / Doc check / Docs check	1m 0s
Checks / Integration tests (3.11, ubuntu-latest)	2m 34s
Checks / Type check / Type check (3.11)	13s
Checks / Type check / Type check (3.12)	11s
Checks / Unit tests / Unit tests (windows-latest, 3.11)	1m 34s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.12)	1m 9s
Checks / Unit tests / Unit tests (windows-latest, 3.13)	2m 19s
Checks / Type check / Type check (3.14)	13s
Checks / Type check / Type check (3.13)	17s
Checks / Unit tests / Unit tests (windows-latest, 3.12)	1m 45s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.11)	1m 13s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.13)	1m 12s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.14)	1m 9s
Checks / Unit tests / Unit tests (windows-latest, 3.14)	1m 35s
Checks / Lint check / Lint check (3.11)	11s
Checks / Lint check / Lint check (3.13)	15s
Checks / Lint check / Lint check (3.12)	10s
Checks / Lint check / Lint check (3.14)	14s
	31m 52s

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