feat: add metadata section to the world contract manifest #5632

Job	Run time
clippy	4m 40s
dojo-core-test	4m 12s
docs	4m 31s
dojo-spawn-and-move-example-test	3m 51s
dojo-world-bindings-check	2m 27s
ensure-wasm	1m 46s
ensure-windows	12m 44s
fmt	1m 21s
test	12m 10s
test-hurl	1m 21s
	49m 3s

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