chore: include required Next.js stages to issue template (vercel#60142)

Include an additional requirement in the [Issue
Template](https://github.com/vercel/next.js/blob/canary/.github/ISSUE_TEMPLATE/1.bug_report.yml)
for adding information about which :nextjs: stage (e.g, `next dev`,
`next build`, & `next start`) is affected in an issue.

.github/ISSUE_TEMPLATE/1.bug_report.yml

@@ -103,6 +103,18 @@ body:
         - 'TypeScript (plugin, built-in types)'
     validations:
       required: true
+  - type: dropdown
+    attributes:
+      label: Which stage(s) are affected? (Select all that apply)
+      multiple: true
+      options:
+        - 'next dev (local)'
+        - 'next build (local)'
+        - 'next start (local)'
+        - 'Vercel (Deployed)'
+        - 'Other (Deployed)'
+    validations:
+      required: true
   - type: markdown
     attributes:
       value: |