tarfile.gettarinfo() accepts PathLike objects (#7832)

This method has accepted PathLike objects since Python 3.6
(python/cpython#512)

Author: simpkins

stdlib/tarfile.pyi

@@ -315,7 +315,9 @@ class TarFile:
         ) -> None: ...
 
     def addfile(self, tarinfo: TarInfo, fileobj: IO[bytes] | None = ...) -> None: ...
-    def gettarinfo(self, name: str | None = ..., arcname: str | None = ..., fileobj: IO[bytes] | None = ...) -> TarInfo: ...
+    def gettarinfo(
+        self, name: StrOrBytesPath | None = ..., arcname: str | None = ..., fileobj: IO[bytes] | None = ...
+    ) -> TarInfo: ...
     def close(self) -> None: ...
 
 if sys.version_info >= (3, 9):