* Fixes bugs that make apiserver panic when aggregating valid but not well formed OpenAPI spec ([#63635](https://github.com/kubernetes/kubernetes/pull/63635), [@roycaihw](https://github.com/roycaihw))

pkg syscall (freebsd-arm64), type BpfVersion struct, Minor uint16
pkg syscall (freebsd-arm64), type BpfZbuf struct
pkg syscall (freebsd-arm64), type BpfZbuf struct, Bufa *uint8
pkg syscall (freebsd-arm64), type BpfZbuf struct, Bufb *uint8
pkg syscall (freebsd-arm64), type BpfZbuf struct, Buflen uint64
pkg syscall (freebsd-arm64), type BpfZbufHeader struct

In this release the SIG again focused on further improving the user experience on cluster creation and also fixing a number of bugs and other assorted improvements.

Some notable changes in kubeadm since Kubernetes 1.12:

* Docker versions 1.10.3 - 1.12.3
  * Docker version 1.11.2 known issues
    - Kernel crash with Aufs storage driver on Debian Jessie ([#27885]((https://github.com/kubernetes/kubernetes/issues/27885))
      which can be identified by the [node problem detector](http://kubernetes.io/docs/admin/node-problem/)

    * handle gracefully problem when kubelet reports duplicated stats for the same container (see [#47853](https://github.com/kubernetes/kubernetes/pull/47853)) on Heapster side
    * fixed bugs and improved performance in Stackdriver Sink

* [fluentd-gcp addon] Use the logging agent's node name as the metadata agent URL. ([#63353](https://github.com/kubernetes/kubernetes/pull/63353), [@bmoyles0117](https://github.com/bmoyles0117))
* Fixes bugs that make apiserver panic when aggregating valid but not well formed OpenAPI spec ([#63627](https://github.com/kubernetes/kubernetes/pull/63627), [@roycaihw](https://github.com/roycaihw))

- Fixed `kube-proxy` panicking on exit when the `Node` object changed its `PodCIDR`. ([#120375](https://github.com/kubernetes/kubernetes/pull/120375), [@pegasas](https://github.com/pegasas))
- Fixed bugs in handling of server-side apply, create, and update API requests for objects containing duplicate items in keyed lists.

  returns `nil`. (It now returns a pointer to a zero-valued object, like the real
  clients do.) This will break some downstream unit tests that were testing
  `result == nil` rather than `err != nil`, and in some cases may expose bugs

## Dependencies

### Added
- buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go: 63bb56e

pkg syscall (freebsd-386-cgo), type BpfVersion struct, Minor uint16
pkg syscall (freebsd-386-cgo), type BpfZbuf struct
pkg syscall (freebsd-386-cgo), type BpfZbuf struct, Bufa *uint8
pkg syscall (freebsd-386-cgo), type BpfZbuf struct, Bufb *uint8
pkg syscall (freebsd-386-cgo), type BpfZbuf struct, Buflen uint32
pkg syscall (freebsd-386-cgo), type BpfZbufHeader struct