`_UNSAFE_ATTRIBUTES` was changed from a `list` to a `set` in odoo/odoo#151989.
odoo/odoo@cde2781591
Reset it to a `list` as before, by retro-compatibility concerns,
in case developers used features not working on `set`.
For instance:
- `_UNSAFE_ATTRIBUTES.append`
- `_UNSAFE_ATTRIBUTES.extend`
- `_UNSAFE_ATTRIBUTES + ['foo']`
The opportunity is taken to add `_co_code_adaptive`,
which is a new attribute added from Python 3.11,
hence available from Ubuntu Noble.
Firstly added as `_co_quickened` in
https://github.com/python/cpython/commit/001eb520b5757294dc455c900d94b7b153de6cdd
Then renamed to `_co_code_adaptive` in
https://github.com/python/cpython/commit/2bde6827ea4f136297b2d882480b981ff26262b6
The opportunity is also taken to move `mro` out of the `Python 2 functions` section,
as `mro` is available in Python 3, hence making the comment confusing.
Part-of: odoo/odoo#151989
Denis Ledoux
aa67ae7879