feat: add afterExtract hook

[rafaberaldo]

Add a hook that triggers after the prebuilt Electron binary has been extracted to the output directory.

What I was looking for is a beforeAsar (or afterCopy) hook, but looks like the file copying function is tightly coupled with asar transformation, this is the next best option.

Partially solves #8188 + #5619 + #4422 + #5709

[changeset-bot]

🦋 Changeset detected

Latest commit: 7b7e699

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

This PR includes changesets to release 8 packages

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

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[rafaberaldo]

Not sure why changeset detected major version bump, I've commited a minor change

[mmaietta]

@rafaberaldo not too sure either why it's flagged as major, but since we're in an alpha release state, I think it should be fine. Thanks for your contribution!

[rafaberaldo]

Have any idea why is it failing on mac?

[mmaietta]

I deactivated the mac test on master. For some reason, all previous versions of electron-builder for FilesTest on mac are broken now. I think a mac update occurred since the test failures randomly appeared last week with no changes to electron-builder.