refactor: move test fixtures #7032

Job	Run time
Build	1m 28s
Unit tests (ubuntu-latest)	1m 11s
Unit tests (macos-latest)	1m 15s
Integration tests (windows-latest)	3m 22s
E2E tests (macos-latest)	9m 55s
Linter	3m 17s
Integration tests (ubuntu-latest)	1m 35s
E2E tests (ubuntu-latest)	8m 6s
E2E tests (windows-latest)	15m 2s
Unit tests (windows-latest)	2m 30s
Integration tests (macos-latest)	2m 48s
Format check	43s
	51m 12s

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