numpy for 2.x not compatible

[ReimarBauer]

I get always the same tests failing in parallel execution by

export QT_QPA_PLATFORM=offscreen
pytest -v -n auto --dist loadfile --cov=mslib

FAILED tests/_test_msui/test_topview.py::Test_MSSTopViewWindow::test_insert_point - assert 3 == 4
FAILED tests/_test_msui/test_topview.py::Test_MSSTopViewWindow::test_remove_point_yes - assert 3 == 4
FAILED tests/_test_msui/test_topview.py::Test_MSSTopViewWindow::test_remove_point_no - assert 3 == 4
FAILED tests/_test_msui/test_topview.py::Test_MSSTopViewWindow::test_move_point - assert 3 == 4
=================================== 4 failed, 561 passed, 20 skipped, 44 warnings in 313.90s (0:05:13) ====================================

We have to lookup how we can improve these tests. it looks like it is caused by the upgrade of numpy to 2.2.2

DEBUG [root] TopView insert point: clicked at (-6.313565, 1.468094), best index: 3
Traceback (most recent call last):
  File "/Users/reimarbauer/miniforge3/envs/mssdev/lib/python3.11/site-packages/matplotlib/cbook.py", line 298, in process
    func(*args, **kwargs)
  File "/Users/reimarbauer/PycharmProjects/MSS/mslib/msui/mpl_qtwidget.py", line 989, in _zoom_pan_handler
    self.canvas.waypoints_interactor.button_release_insert_callback(event)
  File "/Users/reimarbauer/PycharmProjects/MSS/mslib/msui/mpl_pathinteractor.py", line 1251, in button_release_insert_callback
    self.plotter.pathpatch.get_path().insert_vertex(best_index, [x, y], WaypointsPath.LINETO)
  File "/Users/reimarbauer/PycharmProjects/MSS/mslib/msui/mpl_pathinteractor.py", line 114, in insert_vertex
    np.asarray(vertex, np.float_), axis=0)
                       ^^^^^^^^^
  File "/Users/reimarbauer/miniforge3/envs/mssdev/lib/python3.11/site-packages/numpy/__init__.py", line 400, in __getattr__
    raise AttributeError(
AttributeError: `np.float_` was removed in the NumPy 2.0 release. Use `np.float64` instead.

Within the fix we have to pin numpy for the next major

There should be a pass through done to identify and fix similiar problems.