dev: update labels in issue templates

Our labels were recently redesigned for consistency across our org
repos.

Author: hlissner

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,7 +1,7 @@
 ---
 name: 📝 Bug Report
-description: Report a bug, error, or misbehavior
-labels: ["type:bug", "needs-triage"]
+description: Report something that isn't working as intended
+labels: ["is:bug", "needs-triage"]
 body:
 - type: markdown
   attributes:

.github/ISSUE_TEMPLATE/request.yml

@@ -1,7 +1,7 @@
 ---
 name: 📝 Feature request
 description: Request a change or new core feature
-labels: ["type:request", "needs-triage"]
+labels: ["is:feature", "needs-triage"]
 body:
 - type: textarea
   attributes: