Description
https://avro.apache.org/docs/current/spec.html#Parsing+Canonical+Form+for+Schemas says:
[ORDER] Order the appearance of fields of JSON objects
as follows: name, type,
fields, symbols,
items, values, size.
For example, if an object has type,
name, and size fields, then the
name field should appear first, followed by the
type and then the size fields.
Current master branch has "logicalType" between "values" and "size": https://github.com/apache/avro/blob/f0b183f2773165e616ec22ed6c32f60cc5b961fe/lang/rust/avro/src/schema.rs#L1513-L1515