chore: tsdown dual build #6640

Job	Run time
Format check	47s
Integration tests (windows-latest)	3m 5s
Linter	1m 53s
Build	1m 25s
Integration tests (macos-latest)	1m 33s
E2E tests (ubuntu-latest)	6m 57s
Unit tests (ubuntu-latest)	1m 20s
E2E tests (macos-latest)	6m 53s
E2E tests (windows-latest)	3m 16s
Unit tests (windows-latest)	2m 29s
Unit tests (macos-latest)	1m 27s
Integration tests (ubuntu-latest)	1m 42s
	32m 47s

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