bug-report template: Add "untriaged" label

.github/ISSUE_TEMPLATE/01-bug-report.yml

@@ -1,7 +1,7 @@
 name: "Bug report"
 description: "Create a report to help us improve"
 title: "[Bug]: "
-labels: ["bug report"]
+labels: [untriaged, "bug report"]
 body:
   - type: markdown
     attributes:

.github/stale.yml

@@ -8,6 +8,7 @@ exemptLabels:
   - "not stale"
   - "package request"
   - "tracker"
+  - "untriaged"
 
 markComment: >
   This issue/PR has been automatically marked as stale because it has not had