build: different module output.name

[iliyaZelenko]

Hi, you did a good package, great job!

At the moment I am developing my package based on yours. But I had a little problem.

I make a package that uses tiptap and tiptap-extensions packages. But these two packages are written in one variable - tiptap.

In my rollup config in output -> globals I have to specify two different names, not

globals: {
  'tiptap': 'tiptap',
  'tiptap-extensions': 'tiptap'
}

Would be right:

globals: {
  'tiptap': 'tiptap',
  'tiptap-extensions': 'tiptapExtensions'
}

My PR removes the problem with the name (variables) conflict when you use the UMD module as IIFE.

[iliyaZelenko]

To be honest, I did not understand the reason for the error CI. Is my code exactly to blame?

[philippkuehn]

there was an issue with your PR. this should be fixed in d0fc404