Use shutil.copymode instead of manual permission bits copying

[sshashank124]

NOTE: It is fine to pass in Path-like objects since python's os.stat and os.chmod methods accept Path-like objects

[coveralls]

Pull Request Test Coverage Report for Build 362

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.0006%) to 97.766%

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Totals
Change from base Build 360:	-0.0006%
Covered Lines:	3676
Relevant Lines:	3760

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💛 - Coveralls

[JakobGM]

Great, this feels much better.

Thanks!