Signed-off-by: Troy Connor <troy0820@users.noreply.github.com>

…3425-to-release-0.23

[release-0.23]  🐛 Cache reader: Wait for cache sync when ReaderFailOnMissingInformer is true

This change bumps structured-merge-diff to pick up a fix for it panicing
when encountering objects with embedded pointer structs that are nil.

This makes us use a newer version of structured-merge-diff than
upstream, but for one release that seems okay, especially given that the
only usage is in the fake client.

…3431-to-release-0.23

[release-0.23] 🐛 Fix panic when using CRs with embedded pointer structs

…s set

The tracker we use in the fakeclient doesn't support status operations,
so we implemented them by copying everything but status and
ResourceVersion from the existing object.

This meant that we copied the existing objects managedFields and that in
turn made the `managedFieldsObjectTracker` error out on Apply with an
`metadata.managedFields must be nil`.

Stop copying the managedFields in status updates.

We don't seem to have any test coverage of this at all, change that.

…3434-to-release-0.23

[release-0.23] 🌱 Test cache reader waits for cache sync

…3430-to-release-0.23

[release-0.23] 🐛 Fakeclient: Fix status apply if existing object has managedFields set