Fix CI: replace broken setup-kind action and bump checkout to v6

[aravindtga]

Description

Replace the defunct engineerd/setup-kind@v0.6.2 action with helm/kind-action@v1 and bump actions/checkout from v5 to v6 across all workflows.

Motivation

The engineerd/setup-kind@v0.6.2 action is broken. its published artifact (dist/main/index.js) no longer exists, causing all e2e workflow runs to fail with:

Error: File not found: '/home/runner/work/_actions/engineerd/setup-kind/v0.6.2/dist/main/index.js'

The replacement (helm/kind-action@v1 with install_only: true) is actively maintained and provides the same functionality - installing the Kind binary without creating a cluster.

The actions/checkout bump to v6 keeps CI on supported action versions.

Changes

• e2eEnvironment.yml: Replace engineerd/setup-kind@v0.6.2 with helm/kind-action@v1
• live-e2e.yml: Same replacement
• go.yml, release-api.yml, release.yml, verifyContent.yml, verifyDocumentation.yml: Bump actions/checkout@v5 → actions/checkout@v6

Testing

• Verified helm/kind-action@v1 supports install_only: true which skips cluster creation (equivalent to the previous skipClusterCreation: true)
• Kind version v0.32.0 is preserved

AI Disclosure

• Kiro CLI has been used to draft this PR message.

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates GitHub Actions workflows to use newer action versions and switches KinD installation to a different action to support CI verification and releases.

Changes:

• Bump actions/checkout references from @v5 to @v6 across multiple workflows.
• Replace engineerd/setup-kind with helm/kind-action in e2e workflows.
• Adjust KinD installation inputs (e.g., install_only) and related setup configuration.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
.github/workflows/verifyDocumentation.yml	Updates checkout action version used by docs verification.
.github/workflows/verifyContent.yml	Updates checkout action version used by content verification.
.github/workflows/release.yml	Updates checkout action version used by release pipeline.
.github/workflows/release-api.yml	Updates checkout action version used by API release pipeline.
.github/workflows/live-e2e.yml	Switches KinD installation action and adjusts Go caching inputs.
.github/workflows/go.yml	Updates checkout action version in Linux/macOS Go workflows.
.github/workflows/e2eEnvironment.yml	Switches KinD installation action in e2e environment workflow.

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