Reset `os.Stdin` after test #283

Job	Run time
suites	1s
smoke (actions)	37s
smoke (bundler-group-rules)	1m 2s
smoke (bundler-group-vendoring)	59s
smoke (bundler)	58s
smoke (cargo)	58s
smoke (composer)	47s
smoke (docker)	38s
smoke (elm)	56s
smoke (go-close-pr)	52s
smoke (go-group-rules)	1m 7s
smoke (go-security)	1m 7s
smoke (go-update-pr)	1m 14s
smoke (go)	1m 2s
smoke (gradle-version-catalog)	2m 37s
smoke (gradle)	50s
smoke (hex)	1m 19s
smoke (maven)	1m 0s
smoke (npm-group-multiple)	1m 46s
smoke (npm-group-rules)	1m 19s
smoke (npm-group-semver)	1m 42s
smoke (npm-group-transitive)	1m 32s
smoke (npm-remove-transitive)	1m 9s
smoke (npm)	1m 25s
smoke (nuget)	38s
smoke (pip-compile)	2m 45s
smoke (pip)	1m 19s
smoke (pipenv)	1m 17s
smoke (pnpm)	1m 22s
smoke (poetry)	1m 35s
smoke (pub)	3m 13s
smoke (submodules)	42s
smoke (swift)	1m 44s
smoke (terraform)	52s
smoke (yarn-berry-workspaces)	57s
smoke (yarn-berry)	59s
smoke (yarn)	1m 12s
	45m 32s

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