docs: Update known issues wiki

[oZakari]

Overview/Summary

This pull request updates the docs/wiki/KnownIssues.md file to address a new issue related to pipeline deployment failures with Azure PowerShell version 13.0.0 on Azure DevOps Agents. The issue impacts several module deployments and provides a workaround by pinning the Azure PowerShell version to 12.5.0.

Key changes:

• Issue Description Update: The known issue now describes deployment failures with Azure PowerShell version 13.0.0 on Azure DevOps Agents, including error messages and affected modules.
• Impact and Workaround: Detailed the impact of the issue and provided a workaround by specifying an older Azure PowerShell version (12.5.0) in the pipeline configuration.
• Pipeline Configuration Examples: Updated examples of the Azure DevOps pipeline configuration before and after applying the workaround.
• Status Update: Clarified the status of the issue, including ongoing investigations and a link to the original GitHub issue for updates.

Related Issues/Work Items

#907

This PR fixes/adds/changes/removes

Adds new known Azure PowerShell Task issue with ADO pipelines within the Accelerator.

Breaking Changes

None

Testing Evidence

N/A

As part of this Pull Request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Ensured the resource API versions in .bicep file/s I am adding/editing are using the latest API version possible
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues
• (ALZ Bicep Core Team Only) Associated it with relevant ADO Items
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated one or more of the following tests (if required)
  • Unit
  • Linting
  • E2E (End-To-End)
  • ValidateAzCloud (Base validation in Azure Cloud)
  • ValidateMcCloud (Base validation in Azure China Cloud)
• Updated relevant and associated documentation (e.g. Contribution Guide, Module READMEs, Wiki Docs etc.)
• If relevant, created or updated Code Tours here