RHOAIENG-16149: chore(Makefile) download arch-appropriate version of kubectl

[jiridanek]

https://issues.redhat.com/browse/RHOAIENG-16149

Description

The kubectl binary is arch dependent. Download the correct one for the machine.

How Has This Been Tested?

$ rm bin/kubectl
$ gmake bin/kubectl
$ bin/kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.11", GitCommit:"dc2898b20c6bd9602ae1c3b51333e2e4640ed249", GitTreeState:"clean", BuildDate:"2022-09-14T16:40:13Z", GoVersion:"go1.17.13", Compiler:"gc", Platform:"darwin/arm64"}
Server Version: version.Info{Major:"1", Minor:"31", GitVersion:"v1.31.2", GitCommit:"5864a4677267e6adeae276ad85882a8714d69d9d", GitTreeState:"clean", BuildDate:"2024-11-08T19:40:38Z", GoVersion:"go1.22.8", Compiler:"gc", Platform:"linux/arm64"}
WARNING: version difference between client (1.23) and server (1.31) exceeds the supported minor version skew of +/-1

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[jiridanek]

/override ci/prow/images

[openshift-ci]

@jiridanek: Overrode contexts on behalf of jiridanek: ci/prow/images

In response to this:

/override ci/prow/images

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[jstourac]

/lgtm

[jiridanek]

/approve

[openshift-ci]

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[jiridanek]

/override ci/prow/images

[openshift-ci]

@jiridanek: Overrode contexts on behalf of jiridanek: ci/prow/images

In response to this:

/override ci/prow/images

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.