Broken with Python 3.14

Description:

Additional info:

• package version(s): 1:3.25.8-3
• config and/or log files: doesn't matter
• link to upstream bug report, if any:

Steps to reproduce:

1. E.g. run hp-plugin -i
2. Crash on removed class:

Traceback (most recent call last):
  File "/usr/bin/hp-plugin", line 41, in <module>
    from base import device, utils, tui, module, services
  File "/usr/share/hplip/base/device.py", line 2690, in <module>
    class LocalOpener(urllib_request.URLopener):
                      ^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'urllib.request' has no attribute 'URLopener'

This happens because Python 3.14 finally removed the URLopener class which was deprecated since Python 3.3: https://github.com/python/cpython/issues/84850

There is an upstream bug report: https://bugs.launchpad.net/hplip/+bug/2115046