Bump wagtail from 4.2.4 to 5.0.5 in /deployment/docker

Bumps [wagtail](https://github.com/wagtail/wagtail) from 4.2.4 to 5.0.5.
- [Release notes](https://github.com/wagtail/wagtail/releases)
- [Changelog](https://github.com/wagtail/wagtail/blob/main/CHANGELOG.txt)
- [Commits](wagtail/wagtail@v4.2.4...v5.0.5)

---
updated-dependencies:
- dependency-name: wagtail
  dependency-type: direct:production
...

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

deployment/docker/REQUIREMENTS.txt

@@ -55,7 +55,7 @@ sorl-thumbnail==12.9.0
 svglib==1.0.0
 simplejson==3.17.0
 django-extensions==3.2.3
-wagtail==4.2.4
+wagtail==5.0.5
 service-identity==18.1.0
 geopy==2.0.0
 python-dwca-reader==0.15.0