add azure_tenant_id envvar --env entry (#1219)

## Type of change

- [x] 🐛 Bugfix

## Issue(s)

* #1211

## Test Plan

- [x] 💪 Manual

src/cli/help/env.go

@@ -69,6 +69,7 @@ var (
 	azureEVs = []envVar{
 		{azure, "AZURE_CLIENT_ID", "Client ID for your Azure AD application used to access your M365 tenant."},
 		{azure, "AZURE_CLIENT_SECRET", "Azure secret for your Azure AD application used to access your M365 tenant."},
+		{azure, "AZURE_TENANT_ID", "ID for the M365 tenant where the Azure AD application is registered."},
 	}
 	awsEVs = []envVar{
 		{aws, "AWS_ACCESS_KEY_ID", "AWS access key for an IAM user or role for accessing an S3 bucket."},