- update to 0.4.9:
* Fix error on PyPy3
* Fix error CPython 3.12
- drop python-mechanize-setup.cfg.patch,
support-python-311.patch: upstream

both.
- Remove unneeded BuildRequires on python.
lead to Denial-of-Service
* URLs passed into mechanize now automatically have URL unsafe
characters percent encoded. This is necessary because newer
versions of python disallow processing of URLs with unsafe
characters. Note that this means values return by
get_full_url(), get_selector() etc will be percent encoded.
- added missing dependencies: Twisted, zope.interface and html5lib
* A couple of python 3 specific fixes for proxy authorization and
adding controls to forms
* Add a finalize_request_headers callback to Browser to allow
users full control of what headers are sent with every
* Fix processing of http-equiv meta tags incorrectly lower casing
* Fix error when a textbox contained within a form contains
- changed BR python-clientform to python-ClientForm (now it matches)
- Removed provides (wrong package)