feat(issue-templates): Refine issue template labels and types

Updated  and  to use a  field instead of  and  labels.
Modified  to use  instead of  and removed .

This change streamlines issue categorization and aligns with updated labeling conventions.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,8 +1,8 @@
 name: 'Bug Report'
 description: 'Report a bug to help us improve Gemini CLI'
 labels:
-  - 'kind/bug'
   - 'status/need-triage'
+type: Bug
 body:
   - type: 'markdown'
     attributes: