Fix deprecated package dependency

[juliovedovatto]

Great work creating this plugin to help us use Node libs in Stencil. 🎉

But it would be good to update package dependencies from https://www.npmjs.com/package/rollup-plugin-node-polyfills?activeTab=dependencies

warning rollup-plugin-node-polyfills > rollup-plugin-inject@3.0.2: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-inject.

I checked my package-lock.json and found:

"rollup-plugin-node-polyfills": {
      "version": "0.2.1",
      "resolved": "https://registry.npmjs.org/rollup-plugin-node-polyfills/-/rollup-plugin-node-polyfills-0.2.1.tgz",
      "integrity": "sha512-4kCrKPTJ6sK4/gLL/U5QzVT8cxJcofO0OU74tnB19F40cmuAKSzH5/siithxlofFEjwvw1YAhPmbvGNA6jEroA==",
      "dev": true,
      "requires": {
        "rollup-plugin-inject": "^3.0.0"
      }
    },

It would be great to change to use @rollup/plugin-inject

[juliovedovatto]

@manucorporat

[Niek]

+1 on this