[5.5.0] Update module versions for release

[cormacpayne]

Description

Update module versions for 5.5.0 release of Azure PowerShell

Checklist

• I have read the Submitting Changes section of CONTRIBUTING.md
• The title of the PR is clear and informative
• The appropriate change log has been updated
• The PR does not introduce breaking changes
• If applicable, the changes made in the PR have proper test coverage
• For public API changes to cmdlets:
  • the changes have gone through a cmdlet design review
  • the cmdlet markdown files were generated using the platyPS module

[cormacpayne]

On-demand: https://azuresdkci.westus2.cloudapp.azure.com/job/powershell-demand/559/
Sign job: https://azuresdkci.westus2.cloudapp.azure.com/job/ps-sign/236/