Support StackBlitz web containers

Stackblitz seems to use some hodge-podged version of NPM which I believe is based on their turbo modules infra.

Running wireit 0.2.1 in a node web container gives the following error:

```
~/projects/lit-js-bundled-starter 8s
❯ npm run dev
$ npm run serve & npm run build watch
$ wireit
❌ wireit must be launched with "npm run" or a compatible command.
More info: Wireit could not identify the script to run.
```