Deprecate `--global-option` and `--build-option`

[sbidoul]

The use of --global-option and --build-option currently trigger a warning, recommending --config-settings.

I propose to deprecate them with a 6 month notice and remove them in 23.3.

After that, we can consider dropping the legacy setup.py egg_info + setup.py bdist_wheel code paths and switch to using the default build backend without build isolation for projects without pyproject.toml.