Close unlabeled issues (#18992)

Release Notes:

- N/A

.github/workflows/close_unlabeled_issues.yml

@@ -0,0 +1,32 @@
+name: Close Unlabeled Issues
+
+on:
+  issues:
+    types: [opened]
+  workflow_dispatch:
+
+jobs:
+  close-unlabeled-issue:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check for labels and close if unlabeled
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            const issue = context.payload.issue;
+            if (issue.labels.length === 0) {
+              const issueNumber = issue.number;
+              await github.rest.issues.update({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueNumber,
+                state: 'closed'
+              });
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueNumber,
+                body: 'This issue has been automatically closed because it was created without using an issue template. Please reopen your issue using one of the following issue templates:\n\nhttps://github.com/zed-industries/zed/issues/new/choose'
+              });
+            }