Pin Prettier version

[javier-sierra-sngular]

Prettier has deployed a patch version (3.2.3) that changes the parser used for .json files from json to jsonc. This parser set trailing commas to "all", and this breaks JSON specification.

The proposal is to set a fixed Prettier version like 3.2.2 solving previous problem with .json files and preventing future breaking changes.

This is, in fact, an official Prettier recommendation:

[...] we change how code is formatted in each release! It’s important to have a locked down version of Prettier in your package.json. And it’s faster, too.

[github-actions]

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[javier-sierra-sngular]

It seems that the parser used in .json files is different for each file (name?)

$ prettier --file-info tsconfig.json 
{ "ignored": false, "inferredParser": "jsonc" }

$ prettier --file-info package.json 
{ "ignored": false, "inferredParser": "json-stringify" }

$ prettier --file-info data.json 
{ "ignored": false, "inferredParser": "json" }

Normal json files are being parsed with normal json parser, so it is not breaking normal json files currently.