fix endpoint accordion

src/client/js/components/Admin/SlackIntegration/CustomBotWithoutProxySettingsAccordion.jsx

@@ -34,7 +34,7 @@ const CustomBotWithoutProxySettingsAccordion = ({
 
   const updateSecretTokenHandler = async() => {
     try {
-      await appContainer.apiv3.put('/slack-integration/custom-bot-without-proxy', {
+      await appContainer.apiv3.put('/slack-integration-legacy/custom-bot-without-proxy', {
         slackSigningSecret,
         slackBotToken,
         currentBotType,
@@ -68,7 +68,7 @@ const CustomBotWithoutProxySettingsAccordion = ({
     setConnectionErrorMessage(null);
     setConnectionSuccessMessage(null);
     try {
-      const res = await appContainer.apiv3.post('slack-integration/notification-test-to-slack-work-space', {
+      const res = await appContainer.apiv3.post('slack-integration-legacy/notification-test-to-slack-work-space', {
         channel: testChannel,
       });
       setConnectionSuccessMessage(res.data.message);