chore: update bug report issue template

Author: panva

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -23,9 +23,11 @@ body:
   - type: dropdown
     attributes:
       label: Runtime
-      description: What JavaScript runtime are you seeing the problem on?
+      description: What javascript runtime are you seeing the problem on?
       options:
+        - Select an option
         - Browser
+        - Bun
         - Cloudflare Workers
         - Deno
         - Electron