BUG: Support spaces in tags

[Shocktrooper]

Description:
When trying to add tags to a dynamic service principal role in vault I got an error that tags cannot have spaces. This is inconsistent with Azure itself that does allow spaces in its tags. This should be changed to match the downstream behavior of Azure

Resources affected:

• https://registry.terraform.io/providers/hashicorp/vault/latest/docs/resources/azure_secret_backend_role#tags-1

References:

• Problematic function: https://github.com/hashicorp/vault-plugin-secrets-azure/blob/main/path_roles.go#L412