`json:"entry_permissions"` is known to be either empty [] or of
structure {string: boolean}. This may have been a breaking API change on
Drime's side. Because EntryPermissions is not used, the type was changed
to `any` to capture both cases, otherwise we could implement custom
unmarshalling for that type.
When specifying --drime-workspace-id, a file greater than the limit at
which file uploads get chunked would ignore the specified ID and get put
into the default workspace instead.
Completes the fix described in commit 2360e65 by properly closing the
chunkwriter by providing the workspace ID to the Drime API call.