Completing the test for distro version

Signed-off-by: Jose Miguel Parrella <j@bureado.com>

syft/distro/identify.go

@@ -91,7 +91,7 @@ func assemble(name, version, like string) *Distro {
 	distroType, ok := IDMapping[name]
 
 	// Both distro and version must be present
-	if len(name) == 0 {
+	if len(name) == 0 && len(version) == 0 {
 		return nil
 	}