enable skipped roofit tutorials

Author: siliataider

.github/wheel-tests/test_tutorials.py

@@ -14,9 +14,6 @@
 subdirs = ["analysis/dataframe", "analysis/tree", "hist", "io/ntuple", "roofit/roofit"]
 
 SKIP_TUTORIALS = {
-    "rf503_wspaceread.py",
-    "rf615_simulation_based_inference.py",
-    "rf618_mixture_models.py",
     "ntpl004_dimuon.C",
     "ntpl008_import.C",
     "distrdf004_dask_lxbatch.py",