Due to when we were updating the pod sandboxes underlying container
object, the pointer to the sandbox would have the right info, but
the on-disk representation of the data was behind. This would cause
the data returned from loading any sandboxes after a restart to have
no CNI result or IP information for the pod.

This change does an additional update to the on-disk container info
right after we invoke the CNI plugin so the metadata for the CNI result
and other networking information is properly flushed to disk.

Signed-off-by: Danny Canter <[email protected]>
(cherry picked from commit 3ee6dd5c1bca441d1ec4988cbaebadbfbcfde525)
Signed-off-by: Brad Davidson <[email protected]>