kubeaudit: update sha

[chenrui333]

• Have you followed the guidelines for contributing?
• Have you ensured that your commits follow the commit style guide?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>)? If this is a new formula, does it pass brew audit --new <formula>?

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followup of #134468

[chenrui333]

While waiting for the upstream feedback, maybe let's move forward with the rebuild.

shasum stays the same.

$ curl -sL https://github.com/Shopify/kubeaudit/archive/refs/tags/v0.22.0.tar.gz | shasum -a 256
6d755f5e1fb8960c4b20805b757bf0d51b8b4b4bdaea8fee387f456279247af1  -

[chenrui333]

close it for now.