ci(workflows) add GitHub Actions workflow for preview builds #8486

Job	Run time
docs	13m 36s
cairofmt	7s
clippy	2m 29s
build	16m 11s
dojo-world-bindings-check	4m 8s
ensure-wasm	7m 46s
fmt	2m 21s
dojo-spawn-and-move-example-test	2m 31s
ensure-docker	9s
test-hurl	2m 21s
dojo-core-test	3m 7s
test	11m 4s
ensure-windows	8m 12s
	1h 14m 2s

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