Managed exports don't work with MCA billing accounts or profiles

🐛 Problem

When deploying a new FinOps hub, using an MCA billing account (Not EA), and configuring the settings.json scope correctly, exports are not created due to slashing errors. I've also been able to replicate this using a manual export. The issue is with the format of IDs that represent a billing profile.

For instance, my billing profile configured is: "/providers/Microsoft.Billing/billingAccounts/d72daa4b-365d-5b26-096a-6d60fcc2374e:b70206fd-4bbb-459a-9438-9ed9b524175f_2019-05-31"

My ADF MI has been setup correctly and has the correct RBAC permissions on my MCA billing account.

The error in ADF: {"error":{"code":"BadRequest","message":"Request properties validation failed: Invalid deliveryInfo destination rootFolderPath; providers/Microsoft.Billing/billingAccounts/d72daa4b-365d-5b26-096a-6d60fcc2374e:b70206fd-4bbb-459a-9438-9ed9b524175f_2019-05-31' Value cannot contain any reserved url characters except forward slashes(/)"}}

👣 Repro steps

TODO: Add repro steps below:

1. Configure an export scope in the settings.json file.
2. Wait for the ADF blob creation trigger to start the Export pipeline.
3. See errors

🤔 Expected

ADF should be able to create exports.

Start with the export scope in settings.json and the ADF blob creation trigger/export pipeline. Reproduce the failure using the MCA billing profile ID shown in the issue and trace where it becomes the deliveryInfo destination rootFolderPath. Done means an MCA export can be created without the reserved-character validation error.