silenced warning of poorly conditioned poly fit in test suite

tests/funcs/test_modelling.py

@@ -3,6 +3,7 @@
 
 
 # see test/functs/fixtures.py for global fixtures "course_..."
+import pytest
 
 import dios
 
@@ -14,6 +15,7 @@ from saqc.funcs.residues import calculatePolynomialResidues, calculateRollingRes
 from tests.fixtures import *
 
 
+@pytest.mark.filterwarnings('ignore: The fit may be poorly conditioned')
 @pytest.mark.parametrize("dat", [pytest.lazy_fixture("course_2")])
 def test_modelling_polyFit_forRegular(dat):
     data, _ = dat(