chore: fix outdated docs issue template label (#9584)

### Description

The template was trying to apply a non-existent label. This makes it so
the right label gets applied.

.github/ISSUE_TEMPLATE/1-docs.yml

@@ -2,7 +2,7 @@ name: "Documentation update or improvement"
 description: A request to update or improve documentation
 title: "📚 Docs: "
 labels:
-  - "template: documentation"
+  - "area: docs"
 body:
   - type: markdown
     attributes: