fix: Unorphan avm/res/purview/account module (#3213)

## Description

Unorphaned `avm/res/purview/account` module as @hundredacres recently
became the owner of this module.

## Pipeline Reference

<!-- Insert your Pipeline Status Badge below -->

| Pipeline |
| -------- |
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[![avm.res.purview.account](https://github.com/Azure/bicep-registry-modules/actions/workflows/avm.res.purview.account.yml/badge.svg?branch=users%2Fkrbar%2FunorphanPurview)](https://github.com/Azure/bicep-registry-modules/actions/workflows/avm.res.purview.account.yml)
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## Type of Change

<!-- Use the checkboxes [x] on the options that are relevant. -->

- [ ] Update to CI Environment or utilities (Non-module affecting
changes)
- [x] Azure Verified Module updates:
- [x] Bugfix containing backwards-compatible bug fixes, and I have NOT
bumped the MAJOR or MINOR version in `version.json`:
- [ ] Someone has opened a bug report issue, and I have included "Closes
#{bug_report_issue_number}" in the PR description.
- [ ] The bug was found by the module author, and no one has opened an
issue to report it yet.
- [ ] Feature update backwards compatible feature updates, and I have
bumped the MINOR version in `version.json`.
- [ ] Breaking changes and I have bumped the MAJOR version in
`version.json`.
  - [ ] Update to documentation

## Checklist

- [x] I'm sure there are no other open Pull Requests for the same
update/change
- [x] I have run `Set-AVMModule` locally to generate the supporting
module files.
- [x] My corresponding pipelines / checks run clean and green without
any errors or warnings

<!-- Please keep up to date with the contribution guide at
https://aka.ms/avm/contribute/bicep -->

avm/res/purview/account/README.md

@@ -1,10 +1,5 @@
 # Purview Accounts `[Microsoft.Purview/accounts]`
 
-> ⚠️THIS MODULE IS CURRENTLY ORPHANED.⚠️
-> 
-> - Only security and bug fixes are being handled by the AVM core team at present.
-> - If interested in becoming the module owner of this orphaned module (must be Microsoft FTE), please look for the related "orphaned module" GitHub issue [here](https://aka.ms/AVM/OrphanedModules)!
-
 This module deploys a Purview Account.
 
 ## Navigation