How to take the script from the site and run it?

Question

JavaScript

In general, I explain what I want.

I have a JS script, it runs in iMacros. When I make an update in the script, I have to go to the hosting and upload it there.

I'm not sure if this is possible, but I want the following. For example, I have another hosting (regular, for a site, not for a script), I upload a JS script to this hosting, which will take my hosting script and execute it.

Let's explain with another example.
For example, I will have such a script u77595.test-handyhost.ru/scriptJS.php. I need my JS script to go here, take the code (I know how to do it) and execute it (I don't know how to do it).