Add BleuCloud to the list of Known Clouds in Azure CLI

**Related command**
az cloud show -n BleuCloud

**Is your feature request related to a problem? Please describe.**
Request to add BleuCloud configuration to the default Known Cloud list for Azure CLI

**Describe the solution you'd like**
I'd like to install a version of Azure CLI where I can out-of-the-box show and switch to the config for the Bleu Sovereign Cloud wihtout having to manually import a json config.

**Describe alternatives you've considered**
The alternative solution is the one we are using now ; import the Bleu endpoints and suffixes config through a JSON file. Each customer getting onboarded on Bleu has to do it manually

**Additional context**
I have submitted a PR for this recently ; linking it to the issue