fix: align stale bot message with actual 60-day threshold (#22842)

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: rekram1-node <rekram1-node@users.noreply.github.com>

script/github/close-issues.ts

@@ -2,8 +2,7 @@
 
 const repo = "anomalyco/opencode"
 const days = 60
-const msg =
-  "To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one."
+const msg = `To stay organized issues are automatically closed after ${days} days of no activity. If the issue is still relevant please open a new one.`
 
 const token = process.env.GITHUB_TOKEN
 if (!token) {