⚡ isort does not support windows. check basic pkg only on ubuntu

but test usage of package on all platforms
(as good as possible)

Author: enryH

.github/workflows/cdci.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: ["ubuntu-latest", "macos-13", "macos-latest", "windows-latest"]
+        os: ["ubuntu-latest"] # test only on ubuntu basic tests, but run integration on all platforms
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4