Not all records in /hibp/breaches endpoint have LogoUrl

[pdehaan]

Re: https://monitor.firefox.com/hibp/breaches

Ctrl+F for "LogoPath" (via HIBP feed). You should get around 655 results (one per breach).
Ctrl+F for "LogoUrl" (which we inject). Each time you refresh you seem to get a different count.

I think we're injecting it here, but not sure why it only seems to inject in some and not others.

Ctrl+F counts [for "LogoUrl"] between refreshes:

• 41 matches
• 45 matches
• 3 matches
• 31 matches
• 225 matches

It was breaking my https://github.com/pdehaan/blurts-schema/ linter, so I had to manually inject the CDN urls myself since it didn't like the field intermittently appearing in records.