Add walltime support for vitest plugin #521

Job	Run time
check	1m 18s
List examples	4s
with-javascript-esm on Node 18	1m 52s
with-typescript-simple-esm on Node 18	2m 50s
with-typescript-simple-cjs on Node 18	2m 59s
with-typescript-cjs on Node 20.5.1	2m 3s
with-typescript-esm on Node 20.5.1	3m 2s
with-typescript-cjs on Node 18	2m 57s
with-javascript-esm on Node 20.5.1	2m 40s
with-typescript-simple-cjs on Node 20.5.1	2m 32s
with-typescript-esm on Node 18	2m 21s
with-typescript-simple-esm on Node 20.5.1	2m 0s
	26m 38s

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