Bump django-health-check from 3.16.5 to 3.18.0

Bumps [django-health-check](https://github.com/revsys/django-health-check) from 3.16.5 to 3.18.0.
- [Release notes](https://github.com/revsys/django-health-check/releases)
- [Changelog](https://github.com/revsys/django-health-check/blob/master/docs/changelog.rst)
- [Commits](revsys/django-health-check@3.16.5...3.18.0)

---
updated-dependencies:
- dependency-name: django-health-check
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -1,7 +1,7 @@
 Django==3.2.16
 django-after-response==0.2.2
 git+https://github.com/ministryofjustice/opg-response.git#egg=django-incident-response
-django-health-check==3.16.5
+django-health-check==3.18.0
 django-decorator-include
 pytest-mock
 pytest-django==4.5.2