Add version consistency check

[PrincessStevenson (PrincessStevenson)]

What

This PR adds a standalone Version Consistency Check workflow to the repository.

It runs Skyscanner/version-consistency-check@v1 as a separate check in GitHub so version mismatches show up clearly on the PR.

The check is configured to fail when inconsistencies are found.

Why

This introduces language version mismatch checks in the repository.

It is part of the strategic action for INL-3290 / INC-4850 and is outlined in COMET-2757.

The check looks for mismatched build and runtime language versions across repository configuration, workflow setup, and Dockerfiles where supported.

References

• Action README
• Action inputs in action.yml

Testing

Not run locally. Workflow change only.

Request

As the owning squad, please review and merge.

_{This PR was generated using turbolift.}

[Copilot]

Pull request overview

Adds a dedicated GitHub Actions workflow to run Skyscanner’s version consistency check so language/runtime version mismatches surface as a distinct PR check.

Changes:

• Introduces a new Version Consistency Check workflow triggered on pushes and PRs targeting main
• Runs Skyscanner/version-consistency-check configured to fail the job when inconsistencies are detected

---

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[Copilot]

The workflow references actions/checkout by a moving tag (@v6). To reduce supply-chain risk and prevent unexpected behavior changes, pin this action to a specific commit SHA (optionally using GitHub’s dependabot/action update tooling to manage upgrades).

Suggested change

	- uses: actions/checkout@v6
	- uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332

[Copilot]

Skyscanner/version-consistency-check@v1 is referenced by a moving major tag. For reproducible builds and to reduce supply-chain risk, consider pinning to a specific commit SHA (and updating intentionally when you want new behavior).

Suggested change

	uses: Skyscanner/version-consistency-check@v1
	uses: Skyscanner/version-consistency-check@<FULL_40_CHARACTER_COMMIT_SHA_FOR_THE_APPROVED_V1_REVISION>

[PrincessStevenson (PrincessStevenson)]

Closing this rollout PR because we should not use the internal version-consistency-check action in public repos.