Fix concurrently to work with npm also

It needs to be `npm run-script build:cjs`.
`yarn build:cjs` and `yarn:build:cjs` both work.

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json

@@ -3,7 +3,7 @@
   "description": "${packageDescription}",
   "version": "${packageVersion}",
   "scripts": {
-    "build": "concurrently '${packageManager}:build:cjs' '${packageManager}:build:es' '${packageManager}:build:types'",
+    "build": "concurrently '${packageManager} build:cjs' '${packageManager} build:es' '${packageManager} build:types'",
     "build:cjs": "tsc -p tsconfig.cjs.json",
     "build:docs": "typedoc",
     "build:es": "tsc -p tsconfig.es.json",