Make feed parser more resilient, add ability to modify html doc. - Better handle errors found while parsing the html feed. - Add CSS-selector-based configuration to modify the html feed before parsing it. This allows using SiloRider with a feed that doesn't have proper micro-format markup.

-i https://pypi.python.org/simple
exceptiongroup==1.1.1
iniconfig==2.0.0
packaging==23.1
pluggy==1.0.0
pytest==7.3.1
pytest-runner==6.0.0
setuptools==67.7.2
setuptools-scm==7.1.0
tomli==2.0.1
typing-extensions==4.5.0