feat(helm): add helm binary support via go tool and update dependencies

[jastBytes]

How to categorize this PR?

/kind bug

What this PR does / why we need it:
The script now uses $HELM as a shell command via go tool helm, ensuring that the helm binary is available through the Go toolchain, which is more consistent with the build environment.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Breaking changes:

[ske-prow]

@jastBytes: The label(s) kind/fix cannot be applied, because the repository doesn't have them.

Details

In response to this:

How to categorize this PR?

/kind fix

What this PR does / why we need it:
The script now uses $HELM as a shell command via go tool helm, ensuring that the helm binary is available through the Go toolchain, which is more consistent with the build environment.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Breaking changes:

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[ske-prow]

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