Use the documented .Capabilities.KubeVersion.Version built-in value in the hpa template

[prasadkatti]

Issue

.Capabilities.KubeVersion.GitVersion is undocumented in Helm v3 - https://helm.sh/docs/chart_template_guide/builtin_objects/

Description

The value .Capabilities.KubeVersion.GitVersion is documented in Helm v2 docs - https://v2.helm.sh/docs/chart_template_guide/#built-in-objects

It seems to also work with Helm v3, but it is not documented in the docs - https://helm.sh/docs/chart_template_guide/builtin_objects/

We should stick to the officially documented values.

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the docs directory)
• Manually tested
• Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[k8s-ci-robot]

Hi @prasadkatti. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[shraddhabang]

/ok-to-test

[shraddhabang]

/lgtm

[wweiwei-li]

/lgtm

[shraddhabang]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: prasadkatti, shraddhabang
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