Remove html elements from ScubaResults.json

[ehaines1]

Removed html tags from ScubaResults.json

🗣 Description

I used the exisiting Format-PlainText method to strip out html tags in ScubaResults.json, specifically for links. This was already being done for ScubaResults.csv.

💭 Motivation and context

Closes #1290

🧪 Testing

To test it, run ScubaGear and verify that the "links" render as text without unicode tags.

✅ 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.

[ehaines1]

Some functional tests have failed, but didn't seem to be related to the changes I made

[schrolla]

Reviewed the code and output produced against a test tenant from both the main branch and this branch. All conversions in the associated outputs conformed to expected transformations in the ScubaResults.JSON. See comment on additional unit testing.

Recommend updating PR title to use imperative style (i.e. Remove vs. Removed) and fix punctuation and case so it reads something like:
Remove HTML elements from ScubaResults.json

[schrolla]

The tests themselves are good, however, they do not include a test for the replaced unicode character \u0026. Recommend adding test(s) for this for completeness.