bin/watch-*.sh scripts always install dependencies

[Wysselbie]

PHP Version

7.4.3

Shopware Version

6.4.10.0

Expected behaviour

If the bin/watch-administration.sh and bin/watch-storefront.sh scripts have been used recently and the node dependencies have been installed, they won't be installed again by executing bin/watch-administration.sh and bin/watch-storefront.sh again.

Actual behaviour

Every time the bin/watch-administration.sh and bin/watch-storefront.sh scripts will be used, the node dependencies will be installed again.

How to reproduce

Build JS, use a watcher script and cancel it after everything is ready.

bin/build-js.sh
bin/watch-administration.sh

Execute the same watcher script again and notice, that all node dependencies will be downloaded again.

bin/watch-administration.sh