chore: issueのテンプレートを追加

.github/ISSUE_TEMPLATE/support_new_endpoint_request.md

@@ -0,0 +1,20 @@
+---
+name: ✨ Support new endpoint request
+about: Suggest an idea
+title: ''
+labels: kind/Feature✨, topic/API🧩, Actions⚙, Manager📦
+assignees: yupix
+
+---
+
+## Summary
+
+<!-- Tell us what the suggestion is -->
+
+## Work
+
+- [ ] v11 support
+- [ ] v12 support
+- [ ] v13 support
+
+