Update requests-toolbelt requirement from ~=0.10.1 to ~=1.0.0

Updates the requirements on [requests-toolbelt](https://github.com/requests/toolbelt) to permit the latest version.
- [Release notes](https://github.com/requests/toolbelt/releases)
- [Changelog](https://github.com/requests/toolbelt/blob/master/HISTORY.rst)
- [Commits](requests/toolbelt@0.10.1...1.0.0)

---
updated-dependencies:
- dependency-name: requests-toolbelt
  dependency-type: direct:production
...

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

requirements/base.txt

@@ -13,7 +13,7 @@ django-waffle==3.0.0  # https://github.com/django-waffle/django-waffle
 
 requests~=2.28.2
 xmltodict~=0.13.0
-requests-toolbelt~=0.10.1
+requests-toolbelt~=1.0.0
 lxml~=4.9.2
 django-xml~=3.0.0
 wsgi-basic-auth~=1.1.0