ci: pin action to v3 and remove moon's --concurency usage #636

Job	Run time
List examples	6s
check	1m 17s
with-typescript-esm on Node 18	3m 39s
with-typescript-cjs on Node 18	3m 50s
with-typescript-simple-esm on Node 18	2m 24s
with-javascript-esm on Node 20.5.1	2m 9s
with-typescript-simple-cjs on Node 18	3m 11s
with-typescript-cjs on Node 20.5.1	3m 37s
with-typescript-simple-cjs on Node 20.5.1	2m 18s
with-typescript-simple-esm on Node 20.5.1	2m 49s
with-typescript-esm on Node 20.5.1	3m 17s
with-javascript-esm on Node 18	2m 5s
	30m 42s

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