Refactoring: Break out loadLibraries() function.

[danmar]

No functional change is intended.

This is a preparation to make qml handling work again

[firewave]

Here's a ticket regarding the duplicated builds for your PRs: open-telemetry/opentelemetry-python#1370. Unfortunately there's no solution for our case in there.

[firewave]

I think we need to limit the actions on push to the following branches:

on:
  push:
    branches:
      - main
      - 'releases/**'
  pull_request:

https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#using-filters

So it will keep the current behavior on PRs but don't also don't fire on push