Update frozenlist to 1.5.0

[pyup-bot]

This PR updates frozenlist from 1.4.1 to 1.5.0.

Changelog

1.5.0

==================

Bug fixes
---------

- An incorrect signature of the ``__class_getitem__`` class method
has been fixed, adding a missing ``class_item`` argument under
Python 3.8 and older.

This change also improves the code coverage of this method that
was previously missing -- by :user:`webknjaz`.


*Related issues and pull requests on GitHub:*
:issue:`567`, :issue:`571`.


Improved documentation
----------------------

- Rendered issue, PR, and commit links now lead to
``frozenlist``'s repo instead of ``yarl``'s repo.


*Related issues and pull requests on GitHub:*
:issue:`573`.

- On the :doc:`Contributing docs <contributing/guidelines>` page,
a link to the ``Towncrier philosophy`` has been fixed.


*Related issues and pull requests on GitHub:*
:issue:`574`.


Packaging updates and notes for downstreams
-------------------------------------------

- A name of a temporary building directory now reflects
that it's related to ``frozenlist``, not ``yarl``.


*Related issues and pull requests on GitHub:*
:issue:`573`.

- Declared Python 3.13 supported officially in the distribution package metadata.


*Related issues and pull requests on GitHub:*
:issue:`595`.


----

Links

• PyPI: https://pypi.org/project/frozenlist
• Changelog: https://data.safetycli.com/changelogs/frozenlist/
• Repo: https://github.com/aio-libs/frozenlist