Fix cache built files step (#46075)
x-ref:
https://github.com/vercel/next.js/actions/runs/4207348694/jobs/7303897663
x-ref:
https://github.com/vercel/next.js/actions/runs/4207892633/jobs/7304098168
x-ref:
https://github.com/vercel/next.js/actions/runs/4208156556/jobs/7303845860
