Bump OPA version from v0.70.0 to v1.0.0

[github-actions]

🗣 Description

• This pull request was created by a GitHub Action to bump ScubaGear's Open Policy Agent (OPA) executable version dependency.
• Please fill out the rest of the template that the Action did not cover.

💭 Motivation and context

• Bump to the latest OPA version v1.0.0

🧪 Testing

• Currently a human should still check if bumping the OPA version affects ScubaGear.

✅ 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

• Demonstrate changes to the team for questions and comments.
  (Note: Only required for issues of size Medium or larger)

✅ 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.

[buidav]

Downloaded v1 OPA using Install-OPAforSCuBA.

Ran the unit tests.

Compared results from a previous version of OPA v0.69.0

and version v1.0.0

No issues found. Looks like epic #648 was successful in addressing our transition to OPA v1 :).

[schrolla]

@buidav Based on OPA 1.0.1 release of bugfixes, recommend closing this PR and reviewing 1.0.1 update so as not to merge support for bugged 1.0.0 version into supported versions.

[schrolla]

Closing in favor of PR #1526 which supersedes this one as a newer bugfix version of OPA came out and the v1.0.0 should not be included as an approved version as a result. Results from this PR can be used as a template for testing v1.0.1.