Update python-validate-pyproject to version 0.12.2 / rev 3 via SR 1086724
    
    https://build.opensuse.org/request/show/1086724
    by user dgarcia + dimstar_suse
    - Update to 0.12.2:
      * setuptools plugin:
        * Fix problem with license-files patterns, by removing default value.
    - 0.12.1:
      * setuptools plugin:
        * Allow PEP 561 stub names in tool.setuptools.package-dir, #87
    - 0.12.0:
      * setuptools plugin:
        * Allow PEP 561 stub names in tool.setuptools.packages, #86
    - 0.11.0:
      * Improve error message for invalid replacements in the pre_compile CLI, #71
      * Allow package to be build from git archive, #53
      * Improve error message for invalid replacements in the pre_compile CLI, #71
      * Error-out when extra keys are added to project.authors/maintainers, #82
      * De-vendor fastjsonschema, #83
    - 0.10.1:
      * Ensure LICENSE.txt is added to wheel.
    - 0.10.0:
      * Add NOTICE.txt to license_files, #58
      * Use default SSL context when downloading classifie