fix: link to discussions

Author: reconbot

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,5 @@
 blank_issues_enabled: false
 contact_links:
   - name: ⁉️ Need help with Node SerialPort?
-    url: https://github.com/nodejs/help
+    url: https://github.com/serialport/node-serialport/discussions
     about: Please start a discussion before opening a bug.