refactor: use sharded WAL #7561

Job	Run time
Build	1m 37s
Format check	44s
Linter	1m 48s
Integration tests (ubuntu-latest)	1m 48s
E2E tests (macos-latest)	9m 10s
E2E tests (ubuntu-latest)	8m 34s
E2E tests (windows-latest)	16m 41s
Integration tests (windows-latest)	3m 24s
Unit tests (windows-latest)	3m 4s
Integration tests (macos-latest)	1m 48s
Unit tests (macos-latest)	1m 55s
Unit tests (ubuntu-latest)	1m 25s
	51m 58s

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