Extra debug logs for update-notifier

[joehan]

Description

Adding some extra logging to sanity check update-notifier. These messages will show up at the very top of firebase-debug.log.

The notifier seems to still be working for me:

However, it does have some logic that uses ConfigStore to limit checks to only 1x per week (https://github.com/ryanblock/update-notifier-cjs/blob/main/index.js#L93), and if it does not have write access to configstore, it will fail silently. Can you check that ~/.config/configstore/update-notifier-firebase-tools.json is writable and has a reasonable lastCheckedTime?