[3.13] gh-151403: Fix use-after-free when an argv item's __fspath__ mutates args...

[3.13] gh-151403: Fix use-after-free when an argv item's __fspath__ mutates args (GH-151404) (#151447)

gh-151403: Fix use-after-free when an argv item's __fspath__ mutates args (GH-151404)

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(cherry picked from commit 6679ac07d881f6e0ce30b7cc28b5671eafa20d9d)

Co-authored-by: tonghuaroot (童话) <tonghuaroot@gmail.com>
Co-authored-by: tonghuaroot <23011166+tonghuaroot@users.noreply.github.com>