Update django-debug-toolbar to 2.2

[pyup-bot]

This PR updates django-debug-toolbar from 1.11 to 2.2.

Changelog

2.2

----------------

* Removed support for end of life Django 2.0 and 2.1.
* Added support for Python 3.8.
* Add locals() option for sql panel.
* Added support for Django 3.0

2.1

----------------

* Changed the Travis CI matrix to run style checks first.
* Exposed the ``djdt.init`` function too.
* Small improvements to the code to take advantage of newer Django APIs
and avoid warnings because of deprecated code.
* Verified compatibility with the upcoming Django 3.0 (at the time of
writing).

2.0

----------------

* Updated ``StaticFilesPanel`` to be compatible with Django 3.0.
* The ``ProfilingPanel`` is now enabled but inactive by default.
* Fixed toggling of table rows in the profiling panel UI.
* The ``ProfilingPanel`` no longer skips remaining panels or middlewares.
* Improved the installation documentation.
* Fixed a possible crash in the template panel.
* Added support for psycopg2 ``Composed`` objects.
* Changed the Jinja2 tests to use Django's own Jinja2 template backend.
* Added instrumentation to queries using server side cursors.
* Too many small improvements and cleanups to list them all.

**Backwards incompatible changes**
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Removed support for Python 2.
* Removed support for Django's deprecated ``MIDDLEWARE_CLASSES`` setting.
* Restructured ``Panel`` to execute more like the new-style Django MIDDLEWARE.
The ``Panel.__init__()`` method is now passed ``get_response`` as the first
positional argument. The ``Panel.process_request()`` method must now always
return a response. Usually this is the response returned by
``get_response()`` but the panel may also return a different response as is
the case in the ``RedirectsPanel``. Third party panels must adjust to this
new architecture. ``Panel.process_response()`` and ``Panel.process_view()``
have been removed as a result of this change.

The deprecated API, ``debug_toolbar.panels.DebugPanel``, has been removed.
Third party panels should use ``debug_toolbar.panels.Panel`` instead.

The following deprecated settings have been removed:

* ``HIDDEN_STACKTRACE_MODULES``
* ``HIDE_DJANGO_SQL``
* ``INTERCEPT_REDIRECTS``
* ``RESULTS_STORE_SIZE``
* ``ROOT_TAG_ATTRS``
* ``TAG``

Links

• PyPI: https://pypi.org/project/django-debug-toolbar
• Changelog: https://pyup.io/changelogs/django-debug-toolbar/
• Repo: https://github.com/jazzband/django-debug-toolbar

[pyup-bot]

Closing this in favor of #326