switch issue templates to use task types instead of bug / enhancement label (#5596)

Author: davidhewitt

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,6 +1,6 @@
 name: 🐛 Bug Report
 description: Create a bug report
-labels: [bug]
+type: Bug
 body:
   - type: markdown
     attributes:
@@ -78,4 +78,4 @@ body:
     id: additional-info
     attributes:
       label: Additional Info
-      description: Any additional info that you think might be useful or relevant to this bug
+      description: Any additional info that you think might be useful or relevant to this bug

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,14 +1,14 @@
 ---
 name: 💡 Feature request
 about: Suggest an idea for this project
-labels: [enhancement]
+type: Feature
 ---
 
-<!-- 
+<!--
 Thank you for sharing your idea!
 
 Please describe your idea in depth. If you're not sure what to write, imagine the following:
   - How is this important to you? How would you use it?
   - Can you think of any alternatives?
   - Do you have any ideas about how it can be implemented? Are you willing/able to implement it? Do you need mentoring?
--->
+-->