Use the correct binary for package.json linting

package.json

@@ -84,7 +84,7 @@
 		"lint:css": "stylelint \"**/*.scss\" --syntax scss",
 		"lint:js": "yarn run install-if-deps-outdated && eslint --ext .js --ext .jsx --ext .ts --ext .tsx --cache .",
 		"lint:mixedindent": "mixedindentlint --ignore-comments \"client/**/*.scss\" \"assets/**/*.scss\" \"**/*.js\" \"**/*.jsx\" \"**/*.tsx\" \"**/*.tsx\" \"!build/**\" \"!node_modules/**\" \"!public/**\" \"!client/config/index.js\"",
-		"lint:package-json": "yarnPkgJsonLint './package.json' './client/package.json' './packages/*/package.json' './apps/*/package.json'",
+		"lint:package-json": "npmPkgJsonLint './package.json' './client/package.json' './packages/*/package.json' './apps/*/package.json'",
 		"prestart": "npx check-node-version --package && yarn run install-if-deps-outdated && node bin/welcome.js",
 		"start": "yarn run -s build",
 		"start-jetpack-cloud": "CALYPSO_ENV=jetpack-cloud-development yarn start",