Add alma errata

[pombredanne]

See https://errata.almalinux.org/
There is no license declaration.
This is some JS app and there is one big JSON with everything on it at https://errata.almalinux.org/8/errata.json

[pombredanne]

@andrewlukoshko you may be able to help to clarify licensing?
The policy https://almalinux.org/p/the-almalinux-os-licensing-policy/ does not mention errata but this may apply?

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