add optuna to test script

Author: christinadionysio

.github/workflows/python.yml

@@ -174,7 +174,8 @@ jobs:
           nltk \
           fvcore \
           scikit-optimize \
-          flair 
+          flair
+          optuna 
         kill $KA 
         cd src/main/python
         python -m unittest discover -s tests/scuro -p 'test_*.py' -v