Breaking change detector: adding "auto detect api change" label on detection

[rluvaton]

currently the breaking change detector ci job that was added in:

• ci: add breaking change detector #21499

The flow should be:

because the flow remove the label when breaking change was no longer detected I don't want to use api change Changes the API exposed to users of the crate label since there might be behavioral change and not api change and it will remove that label

this means that when doing release and finding breaking change prs by label it should also include the new label