Update config.yml

Author: MichaelDeBoey

.github/ISSUE_TEMPLATE/config.yml

@@ -4,5 +4,5 @@ contact_links:
     url: https://github.com/tannerlinsley/react-query/discussions
     about: Please ask and answer questions here.
   - name: Community Chat
-    url: https://discord.gg/2K7RXHm
+    url: https://discord.gg/mQd7egN
     about: A dedicated discord server hosted by Tanner Linsley