UPSTREAM: <drop>: run make update

make update fails with the following error due to some go mod issue
in code-generator:
```
inconsistent vendoring in /go/{redacted}/k8s.io/code-generator
```

to work around, we do the following:

- change directory to 'staging/src/k8s.io/code-generator'
- remove the following from the 'replace' section
	 k8s.io/code-generator => ../code-generator
- run 'go mod tidy'
- run 'go mod vendor'

- change directory to root
- run make update, using the following command

podman run -it --rm -v $( pwd ):/go/src/k8s.io/kubernetes:Z \
  --workdir=/go/src/k8s.io/kubernetes \
  registry.ci.openshift.org/openshift/release:rhel-8-release-golang-1.18-openshift-4.11 \
  make update OS_RUN_WITHOUT_DOCKER=yes

inside the docker prompt, also run the followig:
- OS_RUN_WITHOUT_DOCKER=yes hack/update-generated-pod-resources.sh