Clean validation workflow failing due to az CLI change

[rudolphjacksonm]

Our automation for cleaning up test environments is failing consistently due to a change in azure cli extensions.

Describe the bug
Since yesterday afternoon workflow runs for Clean Validation Environments workflow have been failing with the following error:

WARNING: The 'cdn' and 'afd' command groups have moved to the 'cdn' CLI extension. Install the latest version with: az extension add --name cdn. The built-in cdn/afd commands in azure-cli core will be removed in a future release.
WARNING: Preview version of extension is disabled by default for extension installation, enabled for modules without stable versions. 
WARNING: Please run 'az config set extension.dynamic_install_allow_preview=true or false' to config it specifically. 
WARNING: The command requires the extension azure-firewall. It will be installed first.
ERROR: The checksum of the extension does not match the expected value. Use --debug for more information.

Steps to reproduce

1. Run Clean Validation Environments or let it run as per the cron in the configuration.
2. Observe the error outlined above.

Azure TRE release version (e.g. v0.14.0 or main):
main

Deployed Azure TRE components - click the (i) in the UI: