meta: add feature request label for issue template

PR-URL: #40970
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: Mesteery

.github/ISSUE_TEMPLATE/2-feature-request.md

@@ -1,7 +1,7 @@
 ---
 name: "\U0001F680 Feature request"
 about: Suggest an idea for this project
-
+labels: feature request
 ---
 
 <!--