fix: incorrect types in pint-schema.json

[Yu-Muro]

Summary

Fix incorrect types set in pint-schema.json. This pr solve issue #73 .

[d8vjork]

Hi @Yu-Muro

Thanks for the merge request, although these changes might need to be done on the script generating this schema which is here.

[Yu-Muro]

Hi @d8vjork
Thank you for pointing that out. I have additionally modified the point you pointed out and changed it so that the pint-schema.json is created in generate-rules-schema.mjs .