When i bump from 5.5.6 to 5.6.0 locales now undefined in getStaticPaths context

[mattmillen888]

When i upgrade from 5.5.6 to 5.6.0 "locals" in context is no longer available it is showing undefined in my getStaticPaths

export async function getStaticPaths({ locales })

If I roll back to 5.5.6 it works fine again. It's affecting the locales context