feat(backend): add SCIM for user provisioning (#12713)

* Add SCIM
Closes https://github.com/inventree/InvenTree/issues/6339

* also test scim

* extend testing with conformance suite

* fix test suite results

* coverage completion

* fil test gaps

* add missing schema values

* fix more type issues

* fix error view

* remove route from OpenAPI

* add changelog entry

* add codeowners

src/frontend/lib/enums/ApiEndpoints.tsx

@@ -258,6 +258,9 @@ export enum ApiEndpoints {
   notes_image_upload = 'notes-image-upload/',
   email_list = 'admin/email/',
   email_test = 'admin/email/test/',
+  scim_config = 'admin/scim/',
+  scim_generate = 'admin/scim/generate/',
+  scim_disable = 'admin/scim/disable/',
   config_list = 'admin/config/',
   parameter_list = 'parameter/',
   parameter_template_list = 'parameter/template/',