Add KUBECTL_KUBERC environment variable description

[ardaguclu]

This PR adds new environment variable into the docs for kubernetes/enhancements#3104

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign katcosgrove for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• content/en/docs/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[netlify]

👷 Deploy Preview for kubernetes-io-vnext-staging processing.

Name	Link
🔨 Latest commit	7942724
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-io-vnext-staging/deploys/671f469ebf140500082ab526

[ardaguclu]

/cc @soltysh @eddiezane

[netlify]

✅ Pull request preview available for checking

Built without sensitive environment variables

Name	Link
🔨 Latest commit	7942724
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-io-main-staging/deploys/671f469ebe35d80008085679
😎 Deploy Preview	https://deploy-preview-48402--kubernetes-io-main-staging.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[sftim]

/sig cli

[soltysh]

Suggested change

	<td></td><td style="line-height: 130%; word-wrap: break-word;">When set to true, kuberc file is taken account to define user specific preferences.
	<td></td><td style="line-height: 130%; word-wrap: break-word;">When set to true, kuberc file is taken into account to define user specific preferences.

[ardaguclu]

Updated. Thank you.

[stmcginnis]

Should wait on, but fast-follow, the merging of kubernetes/kubernetes#125230

[ardaguclu]

We've missed the code merge for 1.32 and functionality is deferred to 1.33
/close

[k8s-ci-robot]

@ardaguclu: Closed this PR.

In response to this:

We've missed the code expect and functionality is deferred to 1.33
/close

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.