feat(label-sync): added label for end of life (#1640)
feat(label-sync): added label for end of life (#1640)

In the short term, to be applied to PRs opened by renovate-bot in which dependencies require Node 12. 
googleapis/repo-automation-bots,googleapis/repo-automation-bots,googleapis/repo-automation-bots,googleapis/repo-automation-bots,googleapis/repo-automation-bots