refactor: use sharded WAL #7497

Job	Run time
Format check	48s
Linter	3m 30s
Unit tests (windows-latest)	2m 19s
Unit tests (macos-latest)	1m 21s
E2E tests (windows-latest)	4m 58s
Build	56s
Unit tests (ubuntu-latest)	1m 21s
Integration tests (macos-latest)	1m 56s
E2E tests (ubuntu-latest)	2m 47s
Integration tests (windows-latest)	3m 9s
E2E tests (macos-latest)	3m 37s
Integration tests (ubuntu-latest)	1m 45s
	28m 27s

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