Support CVSS 4

[czunker]

Is your feature request related to a problem? Please describe.
We currently only support v2 and v3:

cnquery/providers-sdk/v1/upstream/mvd/cvss/cvss.go

Lines 21 to 25 in 1a67a91

	func init() {
	// defines the valid metrics
	// CVSS v3 https://www.first.org/cvss/specification-document#2-Base-Metrics
	// CVSS v2 https://www.first.org/cvss/v2/guide
	Metrics = map[string][]string{

Describe the solution you'd like
We should also support v4.
Some vulnerability data already includes this, e.g., https://osv.dev/vulnerability/GHSA-4rr6-2v9v-wcpc

Describe alternatives you've considered
We cannot ignore it.

Additional context
Not yet provided by NVD.

Spec:
https://www.first.org/cvss/v4.0/specification-document