fix: should not chmod for 7za when process.env.USE_SYSTEM_7ZA is true

[beyondkmp]

fix #8151

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🦋 Changeset detected

Latest commit: 4ed3ac6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 10 packages

Name	Type
builder-util	Patch
app-builder-lib	Patch
dmg-builder	Patch
electron-builder-squirrel-windows	Patch
electron-builder	Patch
electron-publish	Patch
electron-forge-maker-appimage	Patch
electron-forge-maker-nsis-web	Patch
electron-forge-maker-nsis	Patch
electron-forge-maker-snap	Patch

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[mmaietta]

Many thanks @beyondkmp ! Great catch