build(deps): bump wagtail from 2.11.2 to 2.11.3

Bumps [wagtail](https://github.com/wagtail/wagtail) from 2.11.2 to 2.11.3.
- [Release notes](https://github.com/wagtail/wagtail/releases)
- [Changelog](https://github.com/wagtail/wagtail/blob/master/CHANGELOG.txt)
- [Commits](wagtail/wagtail@v2.11.2...v2.11.3)

Signed-off-by: dependabot[bot] <support@github.com>

{{cookiecutter.project_slug}}/requirements.txt

@@ -160,7 +160,7 @@ urllib3==1.25.10          # via requests
 user-agents==2.2.0        # via -r {{cookiecutter.project_slug}}/requirements.in, django-user-agents
 virtualenv==20.0.31       # via pre-commit
 https://github.com/wagtail/wagtail-factories/archive/master.zip  # via -r {{cookiecutter.project_slug}}/requirements.in
-wagtail==2.11.2           # via -r {{cookiecutter.project_slug}}/requirements.in, wagtail-factories, wagtailfontawesome
+wagtail==2.11.3           # via -r {{cookiecutter.project_slug}}/requirements.in, wagtail-factories, wagtailfontawesome
 wagtailfontawesome==1.2.1  # via -r {{cookiecutter.project_slug}}/requirements.in
 wcwidth==0.2.5            # via bpython, curtsies, prompt-toolkit
 webencodings==0.5.1       # via bleach, html5lib