Rework imported sources for the vulndb, aswell as handling the migration for these changes.#1521

timbastin wants to merge 18 commits intomainl3montree-dev/devguard:mainfrom

1469-vulndb-should-use-osv-cvss-value-if-nist-did-not-provide-one-yetl3montree-dev/devguard:1469-vulndb-should-use-osv-cvss-value-if-nist-did-not-provide-one-yetCopy head branch name to clipboard