chore: tsdown dual build #6644

Job	Run time
Format check	41s
Unit tests (ubuntu-latest)	46s
Unit tests (macos-latest)	50s
Linter	1m 35s
Unit tests (windows-latest)	1m 29s
Integration tests (ubuntu-latest)	42s
Integration tests (windows-latest)	1m 48s
Integration tests (macos-latest)	52s
Build	1m 38s
E2E tests (ubuntu-latest)	7m 57s
E2E tests (macos-latest)	7m 4s
E2E tests (windows-latest)	3m 36s
	28m 58s

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