Update issue template config and disable docs requests (#4682)

Author: aBurmeseDev

.github/ISSUE_TEMPLATE/config.yml

@@ -4,6 +4,12 @@ contact_links:
   - name: 🚀 Feature Request
     url: https://github.com/aws/aws-sdk-js-v3
     about: Feature requests are no longer accepted in this repository. Please migrate to AWS SDK for JavaScript v3.
+  - name: 🐛 Bug Report
+    url: https://github.com/aws/aws-sdk-js-v3
+    about: In Maintenance mode, we accept only critical bugs and security issues. Otherwise, migrate to AWS SDK for JavaScript v3.
+  - name: 📕 Documentation Issue
+    url: https://github.com/aws/aws-sdk-js-v3
+    about: Documentation requests are no longer accepted in this repository. Please migrate to AWS SDK for JavaScript v3.
   - name: 💬 General Question
     url: https://github.com/aws/aws-sdk-js/discussions/categories/q-a
     about: Please ask and answer questions as a discussion thread