ci(workflows) add GitHub Actions workflow for preview builds #8484

Job	Run time
build	3m 17s
docs	3m 6s
cairofmt	5s
clippy	2m 59s
dojo-world-bindings-check	4m 5s
ensure-wasm	1m 39s
fmt	1m 7s
dojo-core-test	3m 35s
ensure-docker	10s
test-hurl	2m 41s
dojo-spawn-and-move-example-test	2m 1s
ensure-windows	10m 32s
test	11m 15s
	46m 32s

Provide feedback