chore: upgrade to cvss-rs 0.2.1

Author: dejanb

Cargo.lock

@@ -65,7 +65,7 @@ csaf = { version = "0.5.0", default-features = false }
 csaf-walker = { version = "0.14.1", default-features = false }
 csv = "1.3.0"
 cve = "0.5.0"
-cvss = { package = "cvss-rs", version = "0.2.0" }
+cvss = { package = "cvss-rs", version = "0.2.1" }
 cvss-old = { package = "cvss", version = "2" }
 deepsize = "0.2.0"
 fixedbitset = "0.5.7"