Update python-azure-mgmt-guestconfig to version 1.0.0b2 / rev 3 via SR 1165191
    
    https://build.opensuse.org/request/show/1165191
    by user rjschwei + anag+factory
    - Switch package to modern Python Stack on SLE-15
      + Use Python 3.11 on SLE-15 by default
      + Add Obsoletes for old python3 package on SLE-15
      + Drop support for older Python versions
    - Switch build system from setuptools to pyproject.toml
      + Add python-pip and python-wheel to BuildRequires
      + Replace %python_build with %pyproject_wheel
      + Replace %python_install with %pyproject_install
      + Update name for dist directory in %files section
    - Drop setting default file attributes in %files section
    - Use modern RPM macros to express version dependencies (forwarded request 1164795 from glaubitz)