Rename enhancement -> feature (#3886)

Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,6 +1,6 @@
 name: Feature Request
 description: Request a new feature or enhancement
-labels: ["enhancement"]
+labels: ["feature"]
 
 body:
   - type: textarea