[github] Auto-add the triage needed label to new issues for discoverability

Author: AnthonyLatsis

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,7 +2,7 @@
 name: Bug report
 about: Create a report to help us improve
 title: ''
-labels: bug
+labels: bug, triage needed
 assignees: ''
 
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.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Share an idea
 title: ''
-labels: feature request
+labels: feature request, triage needed
 assignees: ''
 
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