(ci) npx js-yaml

To (hopefully) prevent CI failures when deploying for a second time and dev deps were pruned from the first deploy

Author: dummdidumm

packages/svelte-vscode/package.json

@@ -4,7 +4,7 @@
     "description": "Svelte language support for VS Code",
     "main": "dist/src/extension.js",
     "scripts": {
-        "build:grammar": "js-yaml syntaxes/svelte.tmLanguage.src.yaml > syntaxes/svelte.tmLanguage.json",
+        "build:grammar": "npx js-yaml syntaxes/svelte.tmLanguage.src.yaml > syntaxes/svelte.tmLanguage.json",
         "build:ts": "tsc -p ./",
         "build": "npm run build:ts && npm run build:grammar",
         "vscode:prepublish": "npm run build && npm prune --production",