Add walltime support for vitest plugin #535

Job	Run time
List examples	6s
check	1m 22s
with-typescript-simple-esm on Node 18	3m 3s
with-typescript-esm on Node 18	2m 16s
with-typescript-simple-cjs on Node 20.5.1	6m 25s
with-javascript-esm on Node 18	6m 15s
with-typescript-cjs on Node 18	3m 16s
with-typescript-simple-esm on Node 20.5.1	2m 4s
with-javascript-esm on Node 20.5.1	1m 58s
with-typescript-esm on Node 20.5.1	2m 7s
with-typescript-cjs on Node 20.5.1	6m 33s
with-typescript-simple-cjs on Node 18	1m 57s
	37m 22s

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