Update kserve manifests from v0.11.2 (#2627) and synchronize from the 1.8 branch

[juliusvonkohout]

@rimolive

cherry pick Update kubeflow/kubeflow manifests from v1.8.0 (#2567)

[google-oss-prow]

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[juliusvonkohout]

We should drop

# If you want to install both KFServing and KServe, install the
# standalone kserve manifests, to avoid conflicts with 0.6.1 KFServing.
# - kserve.yaml
# - aggregated-roles.yaml
# - kserve-runtimes.yaml
# configMapGenerator:
#   - name: kserve-config
#     namespace: kserve
#     behavior: merge
#     envs:
#     - params.env

from the main kustomization.yaml since KFserving is gone.

https://github.com/kubeflow/manifests/blob/7c2de6bbfd486919b36d519f08393399758c30c8/tests/gh-actions/install_kserve.sh should be rewritten to clearly separate the CRD installation and wait after that.

[rimolive]

Is this required for 1.8.1?

[juliusvonkohout]

Is this required for 1.8.1?

no for 1.9. The merge just started the wrong way. we should always update master first and backport to older branches as for example 1.8. So this time i have to make a forward-port.