Renamed labels breaks the bot

[kellertk]

When you request an issue from the GitHub API, the labels array contains the current label names, but when you request an issue's timeline, the timeline entries are the names of the labels as they were when the labels were applied. This means that labels that got renamed will show up as different names in the issue timeline.

This breaks the bot at

stale-issue-cleanup/src/utils.js

Line 53 in 8f2918f

return Date.parse(searchLabelEvents[0].created_at);

because that array is empty.