Using '-1' as a version does not return the latest version

[mattieserver]

What happened?

We trying to get the latest version of a schema with '-1' as version you get the following error:

URL: /subjects/XXXXXX/versions/-1
{"error_code":42202,"message":"The specified version '-1' is not a valid version id. Allowed values are between [1, 2^31-1] and the string \"latest\""}

What did you expect to happen?

'-1' should work the same as using 'latest' as the version.

What else do we need to know?

Docker image version: 3.6.1

[mattieserver]

If you look at https://github.com/aiven/karapace/blob/ec75a340d33a36c99eb5d107876fa08cb6ca38f9/karapace/schema_references.py#L79 it seems like it should have worked.

[nosahama]

Fixed in #885, to be released with 3.14.0.