kuttl: build with go@1.22

[stefanb]

use "go" againg after

• [Bug]: Build fails with Go 1.23 because of changed testing.testDeps kudobuilder/kuttl#546 is fixed and released

Follow-up to

• go 1.23.0, go@1.22 1.22.6 (new formula) #175310

• 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>?

---