Link to releases repo for upgrade issues (#43295)

Summary:
Changelog: [Internal]

We're moving upgrade issues to https://github.com/reactwg/react-native-releases/issues/new/choose

Pull Request resolved: #43295

Reviewed By: cortinico, cipolleschi

Differential Revision: D54442540

Pulled By: lunaleaps

fbshipit-source-id: a079935a290f56d2932c5fc588e96a68e1c13f9a

Author: lunaleaps

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,9 @@
 blank_issues_enabled: false
 contact_links:
+    - name: ⬆️ Upgrade - Build Regression
+      url: https://github.com/reactwg/react-native-releases/issues/new/choose
+      about: |
+        If you are upgrading to a new React Native version (stable or pre-release) and encounter a build regression.
     - name: 🚀 Expo Issue
       url: https://github.com/expo/expo/issues/new
       about: |