chore: get embedded user with roles and permissions (#19813)

* feat: get user roles endpoint

* add tests

* fix test

* get user with permission and roles with full user

* frontend

* type juggling

* the hash slinging slasher

* user reducer and action

* make it happy

* result

* lint

Co-authored-by: Lily Kuang <lily@preset.io>

tests/integration_tests/security_tests.py

@@ -889,6 +889,7 @@ class TestRolePermission(SupersetTestCase):
             ["AuthDBView", "login"],
             ["AuthDBView", "logout"],
             ["CurrentUserRestApi", "get_me"],
+            ["CurrentUserRestApi", "get_my_roles"],
             # TODO (embedded) remove Dashboard:embedded after uuids have been shipped
             ["Dashboard", "embedded"],
             ["EmbeddedView", "embedded"],