Disable spell/typo checking for a specific field in a JSON document

I have a very large JSON file with a linked JSON Schema file. There is one field that contains usernames and which makes a lot of noise in the Problems view for this file. I still want to spell check all the other fields.

Is there a trick to disable spell check for _just_ the “contributors” field in JSON documents (can be global)? Maybe there's a trick in my schema.json file to hint to the spell checker feature to avoid those values?