[3.12] gh-117691: Add an appropriate stacklevel for PEP-706 tarfile deprecation warnings (GH-117872) (GH-117930)

gh-117691: Add an appropriate stacklevel for PEP-706 tarfile deprecation warnings (GH-117872)
(cherry picked from commit cff0a2db00b6379f60fe273a9782f71773d0a4cb)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>