Invalid v3.1 vector is parsed with no error

[pandatix]

Hey folks !
While running differential fuzzing with existing Go implementations of CVSS I discovered a bug in your implementation of 3.1 parsing.

I used reference v0.0.0-20250717011716-41efc8551f0f which corresponds to commit 41efc8551f0f.

Let's consider the following code.

vector := "CVSS:0.0/S:C"
_, err := scagogogoparser.NewCvss3xParser(vector).Parse()
if err == nil {
	fmt.Println("there should be an error")
}

When running, the err is nil despite the vector being invalid.