Severity does not match the schema

[Lexxxzy]

Several vulnerabilities are labeled as using CVSS v4, but their scores are actually calculated with CVSS v3.

Examples:
GHSA-fpcr-4rr5-hpcp

advisory-database/advisories/github-reviewed/2022/05/GHSA-fpcr-4rr5-hpcp/GHSA-fpcr-4rr5-hpcp.json

Lines 13 to 14 in f682ffc

	"type": "CVSS_V4",
	"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"

GHSA-34cx-hvm4-vx7j

advisory-database/advisories/github-reviewed/2022/05/GHSA-34cx-hvm4-vx7j/GHSA-34cx-hvm4-vx7j.json

Lines 13 to 14 in f682ffc

	"type": "CVSS_V4",
	"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"