chore: tsdown dual build #6643

Job	Run time
Format check	41s
Linter	1m 44s
Integration tests (macos-latest)	41s
Unit tests (ubuntu-latest)	46s
Integration tests (ubuntu-latest)	45s
Integration tests (windows-latest)	1m 38s
Unit tests (macos-latest)	1m 9s
Build	1m 13s
Unit tests (windows-latest)	1m 40s
E2E tests (macos-latest)	8m 17s
E2E tests (ubuntu-latest)	7m 47s
E2E tests (windows-latest)	3m 34s
	29m 55s

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