[FIX] hw_drivers,hw_escpos: Check pyusb version

The `get_string` method from the `pyusb` package has changed its
signature after version 1.0.0b1 so we used to force the IoT Box to use
this version to avoid an error. The problem is that version 1.0.0b1
has dependencies that raise DeprecationWarings in Raspbian Buster.
We then want to update the version of pyusb that is installed on the
IoT Box in 14.0.

As the Driver might be loaded to old versions of the IoT Box as well
as new ones, we need to check what version of the package is present
on the IoT Box before calling `get_string`.

This check will be removed in 14.0, as people will have to use the
latest version of the IoT Box.

closes odoo/odoo#51230

Signed-off-by: Quentin Lejeune (qle) <qle@odoo.com>