Merge pull request #282 from DoubleML/s-maintenance

Update scikit-learn version requirement to >=1.4.0,<1.6.0 in setup.py

Author: SvenKlaassen

setup.py

@@ -26,7 +26,7 @@
         'numpy',
         'pandas',
         'scipy',
-        'scikit-learn<1.6.0',
+        'scikit-learn>=1.4.0,<1.6.0',
         'statsmodels',
         'plotly',
     ],