Add traversal_ids and archived to vulnerability_reads

What does this MR do and why?

This MR adds the traversal_ids and archived columns to the vulnerability_reads table. The fields will match their values on the project the respective vulnerability belongs to. This denormalisation will enable more performant querying of vulnerability, which should enable sufficient performance for the Vulnerability Group Report to function as intended.

MR acceptance checklist

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Related to #437667 (closed)