Updated regal to latest version

[crutchfield]

🗣 Description

Updated regal to use latest version - update uses Node 20+
closes #917

💭 Motivation and context

Node 16 is no longer supported with security updates

🧪 Testing

• Executed Rego unit test / linter

✅ Pre-approval checklist

• This PR has an informative and human-readable title.
• PR targets the correct parent branch (e.g., main or release-name) for merge.
• Changes are limited to a single goal - eschew scope creep!
• Changes are sized such that they do not touch excessive number of files.
• All future TODOs are captured in issues, which are referenced in code comments.
• These code changes follow the ScubaGear content style guide.
• Related issues these changes resolve are linked preferably via closing keywords.
• All relevant type-of-change labels added.
• All relevant project fields are set.
• All relevant repo and/or project documentation updated to reflect these changes.
• Unit tests added/updated to cover PowerShell and Rego changes.
• Functional tests added/updated to cover PowerShell and Rego changes.
• All relevant functional tests passed.
• All automated checks (e.g., linting, static analysis, unit/smoke tests) passed.

✅ Pre-merge checklist

• PR passed smoke test check.

• Feature branch has been rebased against changes from parent branch, as needed

  Use Rebase branch button below or use this reference to rebase from the command line.

• Resolved all merge conflicts on branch

• Notified merge coordinator that PR is ready for merge via comment mention

✅ Post-merge checklist

• Feature branch deleted after merge to clean up repository.
• Verified that all checks pass on parent branch (e.g., main or release-name) after merge.

[james-garriss]

Looks like minor changes for a language version update.

[schrolla]

Reviewed changed and ran Invoke-Scuba which worked as intended with latest release. However, noted that changing import rego.v1 and removing if {} statements has the effect of making versions of Rego <0.59 fail as the syntax is not supported by earlier versions of the engine. I am okay with requiring newer versions, but it means we should also update the list of allowed OPA rego engine versions in the Install-OPA method to only support 0.59 and up (0.60 and 0.61 at the moment).

Recommend updating allowed list by removing those now unsupported versions. Also recommend rebase first as the allow list has been updated by a now merged commit.

[crutchfield]

Reviewed changed and ran Invoke-Scuba which worked as intended with latest release. However, noted that changing import rego.v1 and removing if {} statements has the effect of making versions of Rego <0.59 fail as the syntax is not supported by earlier versions of the engine. I am okay with requiring newer versions, but it means we should also update the list of allowed OPA rego engine versions in the Install-OPA method to only support 0.59 and up (0.60 and 0.61 at the moment).

Recommend updating allowed list by removing those now unsupported versions. Also recommend rebase first as the allow list has been updated by a now merged commit.

Change to allow tested version 59-61.

[schrolla]

Everything still works as expected, except for the comment below.

[schrolla]

Reviewed latest updates and found that it installed the latest version of OPA running both Initialize-SCuBA and Install-OPA as expected. No other issues found and looks ready for merge.

[crutchfield]

@nanda-katikaneni PR is ready to merge to main