Update django-phonenumber-field requirement from ==7.3.* to ==8.0.*

Updates the requirements on [django-phonenumber-field](https://github.com/stefanfoulis/django-phonenumber-field) to permit the latest version.
- [Release notes](https://github.com/stefanfoulis/django-phonenumber-field/releases)
- [Changelog](https://github.com/stefanfoulis/django-phonenumber-field/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/stefanfoulis/django-phonenumber-field/compare/7.3.0...8.0.0)

---
updated-dependencies:
- dependency-name: django-phonenumber-field
  dependency-type: direct:production
...

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

pyproject.toml

@@ -51,7 +51,7 @@ dependencies = [
   "django-markup",
   "django-oauth-toolkit==2.3.*",
   "django-otp==1.5.*",
-  "django-phonenumber-field==7.3.*",
+  "django-phonenumber-field==8.0.*",
   "django-redis==5.4.*",
   "django-scopes==2.0.*",
   "django-statici18n==2.5.*",