CloudKit is inconsistent about how it encodes the isDeleted field on
album records, returning a JSON boolean (true/false) for some accounts
and a number (0/1) for others. The numeric form caused listing of a
photo library to fail with:
json: cannot unmarshal number into Go struct field
ckBoolField.records.fields.isDeleted.value of type bool
The encoding also varies over time, not just per account: a full HTTP
dump from the reporting user showed the server sending
"isDeleted" : { "value" : 0, "type" : "INT64" }
but the same account later reverted to the boolean encoding with no
client change. Asset records already deliver isDeleted as a number, so
both encodings are in active use server side and either may appear.
Accept both encodings when parsing CloudKit boolean fields.
See: https://forum.rclone.org/t/error-when-trying-to-list-contents-of-primarysync-directory-in-icloud-photos/54028