"Identity not found" when using Azure Backend (deprecated token url)

[Eneuman]

Describe the bug
When using Azure KeyVault as a backend, the sidecar failes with the following error:

Plugin sidecar failed. error generating manifests in cmp: rpc error: code = Unknown desc = error generating manifests: sh -c "kustomize build . | argocd-vault-plugin generate -" failed exit status 1: Error: Replace: could not replace all placeholders in Template:\nazure.BearerAuthorizer#WithAuthorization: Failed to refresh the Token for request to https://kv-<REDACTED>.vault.azure.net/secrets/<REDACTED>/?api-version=2016-10-01: StatusCode=400 -- Original Error: adal: Refresh request failed. Status Code = '400'. Response body: {\"error\":\"invalid_request\",\"error_description\":\"Identity not found\"} Endpoint http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01&client_id=<REDACTED>&resource=https%3A%2F%2Fvault.azure.net

Looking at the error message it seems like the plugin is using a outdated azure go module that still uses the deprecated (Since June 30, 2023) ADAL Library.
The authentication url: http://169.254.169.254/metadata/identity/oauth2/token is deprecated.
It should have used http://169.254.169.254/metadata/identity/oauth2/v2.0/token

This error is happening in other products aswell: hashicorp/terraform-provider-azurerm#24172

[YvesZelros]

Should fixed by this PR