Remove pin of numpy<2.0

Author: pgleeson

.github/workflows/ci.yml

@@ -49,7 +49,6 @@ jobs:
     - name: Install package
       run: |
         python -m pip install --upgrade pip
-        pip install 'numpy<2.0.0' # due to lingering issues with other modules & numpy...
         pip install .[dev]
 
     - name: Lint with flake8