chore(governance): update wording tech debt to summary in maintenance template

Author: heitorlessa

Diff for: .github/ISSUE_TEMPLATE/maintenance.yml

@@ -12,7 +12,7 @@ body:
   - type: textarea
     id: activity
     attributes:
-      label: Technical debt
+      label: Summary
       description: Please provide an overview in one or two paragraphs
     validations:
       required: true