Update QLocale locale database up to CLDR 23.1

This only added Kosovo [XK] territory and few valid locales for it.

Change-Id: Ia0b47041ed5cd1303b5bc233f2502a3725c74da9
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Fix Undefined Behavior due to `delete new[]`

This didn't crash just because a simple type was used.
On other platforms/compilers it may eat your cat or whatever.

Change-Id: Ica2631e4e8ad20ff3a7f4cab60ec8487b6fa70ec
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>