perf(core): skip unnecessary stat call in tgzUtils.convertToZip

[merceyz]

What's the problem this PR addresses?

tgzUtils.convertToZip tries to get the stats of a file that never exists.

Ref #4057

How did you fix it?

Pass the default stats to the ZipFS constructor to skip the stat call.

Benchmark results

On the gatsby benchmark this removes 1918 statx calls when fetching packages

YARN_IGNORE_PATH=1 hyperfine -w 1 --prepare="rm -rf ./.yarn-global"\
  "node ./master.cjs --mode skip-build"\
  "node ./skip-zip-stat.cjs --mode skip-build"
Benchmark 1: node ./master.cjs --mode skip-build
  Time (mean ± σ):      7.906 s ±  0.201 s    [User: 51.286 s, System: 3.319 s]
  Range (min … max):    7.700 s …  8.375 s    10 runs

Benchmark 2: node ./skip-zip-stat.cjs --mode skip-build
  Time (mean ± σ):      7.847 s ±  0.191 s    [User: 51.128 s, System: 3.252 s]
  Range (min … max):    7.646 s …  8.325 s    10 runs

Summary
  'node ./skip-zip-stat.cjs --mode skip-build' ran
    1.01 ± 0.04 times faster than 'node ./master.cjs --mode skip-build'

Checklist

• I have read the Contributing Guide.
• I have set the packages that need to be released for my changes to be effective.
• I will check that all automated PR checks pass before the PR gets reviewed.