ci(workflows) add GitHub Actions workflow for preview builds #8501

Job	Run time
docs	2m 16s
clippy	2m 51s
cairofmt	9s
build	3m 35s
dojo-world-bindings-check	4m 1s
ensure-wasm	1m 34s
fmt	1m 10s
test-hurl	2m 38s
dojo-spawn-and-move-example-test	2m 19s
dojo-core-test	3m 30s
ensure-docker	9s
test	11m 6s
ensure-windows	9m 37s
	44m 55s

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