Update pexpect to 4.9.0

[pyup-bot]

This PR updates pexpect from 4.4.0 to 4.9.0.

Changelog

4.9

* Add support for Python 3.12 769.
* Clean up temporary files after UnicodeTests 753.
* Add Python 3.5, 3.6 and 3.12.0-rc.1 to test matrix 763.
* Set prompt correctly for zsh 712.
* Add zsh convenience function to replwrap module 751.
* Rework async unittests to rely on unittest.IsolatedAsyncioTestCase 764.
* Make test_expect.py work on POSIX systems that are not Linux based 698.
* Add support for ``socket``, which allows sockets to be used crossplatform 745.
* Update async to work on newer versions of python 732.
* Remove deprecated RSAAuthentication option (SSHv1) 744.
* Multiple CI fixes 743 737 742 739 722.
* Use Github Actions for CI 734.
* Remove pytest-capturelog from testing requirements 730.
* Fix usage for Solaris 663 604 560.
* Fix threading for new versions of python 684.
* Fix documentation builds for use with Sphinx 3 638.
* Use ``sys.executable`` for tests and wrapper, allowing the calling python executable to be used instead 623.
* Update documentation about Wexpect 623.
* Added project urls to ``setup.py`` 620.
* Provide examples for how to use Pexpect and Pyte 587.
* Coerce compiled regex patterns type according to spawn encoding 560.
* Several doc updates 626 635 643 644 728.

4.8.0

* Returned behavior of searchwindowsize to that in 4.3 and earlier (searches are only done within the search window) (579).
* Fixed a bug truncating ``before`` attribute after a timeout (579).
* Fixed a bug where a search could be less than ``searchwindowsize`` if it was increased between calls (579).
* Minor test cleanups to improve portability (580) (581) (582) (583) (584) (585).
* Disable chaining of timeout and EOF exceptions (606).
* Allow traceback included snippet length to be configured via ``str_last_chars`` rather than always 100 (598).
* Python 3 warning added to interact.py (537).
* Several doc updates.

Links

• PyPI: https://pypi.org/project/pexpect
• Changelog: https://data.safetycli.com/changelogs/pexpect/
• Docs: https://pexpect.readthedocs.io/