Fix the terms UI auth tests

By setting the config value directly, we skip the block that adds the slash automatically for us.

tests/test_terms_auth.py

@@ -43,7 +43,7 @@ class TermsTestCase(unittest.HomeserverTestCase):
     def test_ui_auth(self):
         self.hs.config.user_consent_at_registration = True
         self.hs.config.user_consent_policy_name = "My Cool Privacy Policy"
-        self.hs.config.public_baseurl = "https://example.org"
+        self.hs.config.public_baseurl = "https://example.org/"
         self.hs.config.user_consent_version = "1.0"
 
         # Do a UI auth request