Fix enum comparison by looking on the definitive value (without style)

[LasneF]

Fix this issue
pb33f/openapi-changes#135

[LasneF]

Notice this is just for enum

there is also something there

but also there

\github\libopenapi\what-changed\model\comparison_functions.go
func CheckForModification[T any](l, r *yaml.Node, label string, changes *[]*Change, breaking bool, orig, new T) {
if l != nil && l.Value != "" && r != nil && r.Value != "" && (r.Value != l.Value || r.Tag != l.Tag) {

isssue is that on a yaml
toto : "a"
toto : a

has same Value but not same tag ( one is !!int , the other is !!str)
and so it spot a diff breaking as of today , to me the tooling is about semantic diff not yaml diff, or space diff

[daveshanley]

Nice fix! thank. you.