refactor: use sharded WAL #7794

Job	Run time
Linter	2m 14s
Format check	1m 3s
Unit tests (ubuntu-latest)	1m 58s
Unit tests (macos-latest)	2m 6s
Build	1m 54s
Unit tests (windows-latest)	2m 54s
E2E tests (windows-latest)	18m 36s
Integration tests (ubuntu-latest)	1m 54s
Integration tests (macos-latest)	1m 46s
Integration tests (windows-latest)	3m 56s
E2E tests (macos-latest)	9m 36s
E2E tests (ubuntu-latest)	9m 20s
	57m 17s

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