wrapper cannot correctly check Azure session since azure-cli v2.30.0

[Shr3ps]

Context:

Claranet terraform-wrapper relies on the Python SDK azure-cli-core lib to retrieve a CLI Azure session.
This session is used to:

• check if the Azure session is correct, has the correct rights to access the target Azure Subscription
• use this session when Azure bakend is used, to get Azure Storage Account keys (and forward them to Terraform)

terraform-wrapper v8.1.2 depends on azure-cli-core v2.29.0 which uses ADAL library for Azure authentication. (Session tokens are stored in the $AZURE_CONFIG_DIR/accessTokens.json file.
With azure-cli and azure-cli-core v2.30.0, Microsoft has introduced a CORE breaking change: they now uses MSAL library for Azure authentication. (See Changelog info: https://github.com/MicrosoftDocs/azure-docs-cli/blob/main/docs-ref-conceptual/release-notes-azure-cli.md#core)
Session tokens are now stored in $AZURE_CONFIG_DIR/msal_token_cache.json file.

Issue description:
First case:

• You have a valid Azure session, generated via azure login command and using azure-cli v2.29 (or anterior version)
• You now upgrade to azure-cli v2.30.0 (or more recent)
• If you trigger a tfwrapper command (like tfwrapper plan):
  • The init phase will success: tfwrapper will rely on the Azure session available via azure-ci-core v2.29 and ADAL lib
  • The plan phase will crash with an error message from Terraform:

Error: building account: getting authenticated object ID: Error parsing json result from the Azure CLI: Error waiting for the Azure CLI: exit status 1: ERROR: User aaaa.bbbb@fr.clara.net does not exist in MSAL token cache. Run `az login`.
│ 
│   with provider["registry.terraform.io/hashicorp/azurerm"],
│   on main.tf line 1, in provider "azurerm":
│    1: provider "azurerm" {

You need to run again az login with azure-cli v2.30+, so you will have both ADAL and MSAL Azure sessions.

Second Case:

• You're on a fresh install of azure-cli v2.30.0, you do an az login command
• Because this has genererated a MSAL session, tfwrapper will directly fail with:

ERROR   tfwrapper : Error while getting Azure token, check that you are authorized on this subscription then log yourself in with:

 AZURE_CONFIG_DIR=/home/xxxxxxxxxxxx/.run/azure az login

because tfwrapper cannot find the ADAL session.

[Shr3ps]

Fixed in Release v9.0.0