build

CI: test wasm on windows (shorter dune path) #3733

Job	Run time
build (ubuntu-latest, 4.08, true, true, true)	3m 18s
build (ubuntu-latest, 4.09, true, true, true)	3m 30s
build (ubuntu-latest, 4.10, true, true, true)	3m 18s
build (ubuntu-latest, 4.11, true, true, true)	3m 33s
build (ubuntu-latest, 4.12, true, true, true)	3m 25s
build (ubuntu-latest, 4.13, true, true, true)	3m 29s
build (ubuntu-latest, 5.0, true, true, true)	3m 25s
build (ubuntu-latest, 5.1, true, true, true)	3m 32s
build (ubuntu-latest, 5.2, true, true, true)	3m 17s
build (ubuntu-latest, 4.14, true, false, true)	8m 35s
build (ubuntu-latest, ocaml-variants.4.14.2+options,ocaml-option-32bit, true, false, true)	7m 50s
build (macos-latest, 4.14, true, false, true)	9m 53s
build (windows-latest, 4.14, true, false, true)	15m 20s
build (ubuntu-latest, 5.3, false, false, false)	11m 19s
build (ubuntu-latest, 5.1, false, false, true)	10m 45s
build (ubuntu-latest, ocaml-variants.5.3.0+options,ocaml-option-32bit, true, true, true)	8m 18s
build (macos-latest, 5.3, true, false, true)	12m 50s
build (windows-latest, 5.3, false, false, true)	20m 42s
	2h 16m 19s

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