change Errata cve column to type text

[mcalmer]

What does this PR change?

Errata table has a column defined as VARCHAR(4000) which is the maximum. But new patches - especially kernel - have huge lists of CVE ids that we go over this maximum and updating the report DB failed with:

ERROR: value too long for type character varying(4000)

This change the type to "TEXT" which should be able to take everything what is provided.

GUI diff

No difference.

• [x] DONE

Documentation

• No documentation needed: only internal and user invisible changes

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Test coverage

• No tests: already covered

• [x] DONE

Links

Port(s): https://github.com/SUSE/spacewalk/pull/24607

• [x] DONE

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