Incluce encryption keySource for automation account

[olljanat]

Overview/Summary

Define encryption keySource for automation account for WhatIf mode does not want remove it.

This PR fixes/adds/changes/removes

Related to logging part of #249
However WhatIf test cannot be yet included because API provider want to remove creationTime value. I just created ticket 2208010050001440 for Azure team about it.

Breaking Changes

N/A

Testing Evidence

Before this PR WhatIf mode reports:

  ~ Microsoft.Automation/automationAccounts/<name> [2021-06-22]
    - properties:

        encryption.keySource: "Microsoft.Automation"

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

[jtracey93]

/azp run validateazcloud

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jtracey93]

/azp run e2e

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).