Rephrase ui only warning

config/locales/en.yml

@@ -296,7 +296,7 @@ en:
     require_mfa_enabled: Your multi-factor authentication has not been enabled. You have to enable it first.
     setup_recommended: For protection of your account and your gems, we encourage you to set up multi-factor authentication. Your account will be required to have MFA enabled in the future.
     strong_mfa_level_recommended: For protection of your account and your gems, we encourage you to change your MFA level to "UI and gem signin" or "UI and API". Your account will be required to have MFA enabled on one of these levels in the future.
-    ui_only_warning: UI Only is deprecated. We encourage you to change your MFA level to "UI and gem signin" or "UI and API".
+    ui_only_warning: Updating multi-factor authentication to "UI Only" is no longer supported. Please use "UI and gem signin" or "UI and API".
     new:
       title: Enabling multi-factor auth
       scan_prompt: Please scan the qr-code with your authenticator app. If you cannot scan the code, add information below into your app manually.