[working] Webi down, related to GitHub outage

[coolaj86]

It's now back up.

Webi went down earlier today during the GitHub outage.

The Webi service restarted due to an error in fetching from GitHub that was not properly handled.
(I suspect the random package refresher may be to blame)

After an excessive number of such failures, systemd to stop trying to restart.

This is the related log:

Error: failed to fetch releases from 'https://api.github.com' with user 'foobar'
    at GitHubish.getAllReleases (/home/app/srv/webinstall.dev/installers/_common/githubish.js:54:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async getAllReleases (/home/app/srv/webinstall.dev/installers/_common/github.js:25:13)
    at async getLatestBuildsInner (/home/app/srv/webinstall.dev/installers/_webi/builds-cacher.js:156:14)
    at async /home/app/srv/webinstall.dev/installers/_webi/builds-cacher.js:149:12
    at async getLatestBuilds (/home/app/srv/webinstall.dev/installers/_webi/builds-cacher.js:152:10)
    at async /home/app/srv/webinstall.dev/installers/_webi/builds-cacher.js:395:18

TODO: permanently solve the problem and prevent it from happening again.