Deprecate v1alpha2 InferencePool API

[danehans]

InferencePool graduated to v1 in the v1.0.0. The v1alpha2 should be deprecated.

[learner0810]

/assign

[danehans]

@learner0810 as you can see above, this issue is considered a release blocker. Are you able to fix this issue in time for the v1.2 release?

[learner0810]

@learner0810 as you can see above, this issue is considered a release blocker. Are you able to fix this issue in time for the v1.2 release?

I have submitted the corresponding PR #1764. Please review it when you have time.

[shmuelk]

The goal is to deprecate the v1alpha2 InferencePool or to remove it?

PR #1764 removes the v1alpha2 InferencePool. It does not deprecate it. That is accept it with a warning message.

[learner0810]

The goal is to deprecate the v1alpha2 InferencePool or to remove it?目标是弃用还是移除 v1alpha2 推理池？

PR #1764 removes the v1alpha2 InferencePool. It does not deprecate it. That is accept it with a warning message.PR #1764 移除了 v1alpha2 推理池，但并未弃用它，而是以警告信息的形式接受。

cc @danehans PTAL