npm(prettier-config): trailingComma: 'none' for jsonc

Summary:
Seems like prettier wants to put trailingComma to JSONc.

Signed-off-by: Yongmin Hong <revi@omglol.email>

Test Plan: `arc land`, push new release, test.

Reviewers: O1 revi & automations, revi

Reviewed By: O1 revi & automations, revi

Differential Revision: https://issuetracker.revi.xyz/D366

npm/prettier-config/README.md

@@ -48,7 +48,7 @@ ## Config
     },
     {
       files: ['.vscode/*.json', '**.hujson'],
-      options: {parser: 'jsonc'},
+      options: {parser: 'jsonc', trailingComma: 'none'},
     },
     {
       files: '.yamllint',

npm/prettier-config/package.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@revi/prettier-config",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "author": {
     "name": "revi",
     "email": "revi@omglol.email",

npm/prettier-config/prettier.config.js

@@ -48,7 +48,7 @@ const config = {
     },
     {
       files: ['.vscode/*.json', '**.hujson'],
-      options: {parser: 'jsonc'},
+      options: {parser: 'jsonc', trailingComma: 'none'},
     },
     {
       files: '.yamllint',