Update JsonSchema.Net

[andreas-hilti]

Update JsonSchema.Net to version 5.3.1

Compare release notes:
https://docs.json-everything.net/rn-json-schema/
as well as the docs for Evaluation results:
https://docs.json-everything.net/schema/basics/#schema-results

[lfrancke]

Thank you very much!
It might make sense to add a test for the timestamps that triggered all of this?

[lfrancke]

Thank you!

[andreas-hilti]

Thank you very much! It might make sense to add a test for the timestamps that triggered all of this?

Done.

[lfrancke]

Thank you! I can't really comment on the code changes itself but what I can see I like. Thanks!