[Create] auto close old issues

.github/workflows/stale.yml

@@ -0,0 +1,39 @@
+# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+#
+# You can adjust the behavior by modifying this file.
+# For more information, see:
+# https://github.com/actions/stale
+name: Close old issues
+on:
+  schedule:
+    - cron: "0 0 * * *"  # 매일 자정에 실행
+
+jobs:
+  close-issues:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Close old issues
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            const now = new Date();
+            const sevenDaysAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
+            
+            const { data: openIssues } = await github.rest.issues.listForRepo({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              state: 'open',
+            });
+            
+            for (const issue of openIssues) {
+              if (new Date(issue.created_at) < sevenDaysAgo) {
+                await github.rest.issues.update({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issue.number,
+                  state: 'closed',
+                  state_reason: 'not_planned'
+                });
+              }
+            }