chore: remove concurrency call and pin action version to have a base run before action v4 #627

Job	Run time
check	1m 16s
List examples	4s
with-typescript-simple-esm on Node 20.5.1	1m 58s
with-typescript-esm on Node 20.5.1	2m 0s
with-typescript-esm on Node 18	4m 10s
with-typescript-cjs on Node 18	3m 38s
with-typescript-cjs on Node 20.5.1	2m 9s
with-javascript-esm on Node 18	1m 48s
with-typescript-simple-cjs on Node 18	3m 32s
with-typescript-simple-esm on Node 18	2m 38s
with-javascript-esm on Node 20.5.1	3m 21s
with-typescript-simple-cjs on Node 20.5.1	2m 3s
	28m 37s

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