Local Environment: wp-cli php fails to run a script

[adamziel]

In wordpress-develop directory:

; wp-now php ./vendor/bin/phpunit
TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
    at new NodeError (node:internal/errors:399:5)
    at validateString (node:internal/validators:163:11)
    at Object.join (node:path:1176:7)
    at runWordPressMode (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:556:58)
    at async runWordPressDevelopMode (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:542:3)
    at async file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:492:9
    at async applyToInstances (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:437:5)
    at async startWPNow (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:486:3)
    at async executePHPFile (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:773:51)
    at async Object.handler (file:///Users/cloudnik/.npm/_npx/48f1587babebd1f4/node_modules/@wp-now/wp-now/main.js:890:9) {
  code: 'ERR_INVALID_ARG_TYPE'
}

It seems like it tries to run WordPress mode when I only expected to run a PHP file. cc @danielbachhuber