Cherry-pick #28228 to 7.x: Upgrade k8s go-client library

[ChrsMark]

Cherry-pick of PR #28228 to 7.x branch. Original message:

What does this PR do?

This PR updates the k8s go-client library.

Why is it important?

To keep the version of the library up to date and not being a blocker for updating other libraries.

[elasticmachine]

Pinging @elastic/integrations (Team:Integrations)

[elasticmachine]

❕ Build Aborted

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Build stats

• Reason: Aborted from #3

• Start Time: 2021-10-06T11:05:45.760+0000

• Duration: 51 min 23 sec

• Commit: ce04b02

Test stats 🧪

Test	Results
Failed	0
Passed	19432
Skipped	1449
Total	20881

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[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b backport_28228_7.x upstream/backport_28228_7.x
git merge upstream/7.x
git push upstream backport_28228_7.x