Update pyproject.toml

Version test

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "laplaciannb"
-version = "0.6.7"
+version = "0.6.8"
 description = "**LaplacianNB** is a Python module developed at **Novartis AG** for Naive Bayes classifier for laplacian modified models based on scikit-learn Naive Bayes implementation."
 authors = [
     {name = "Bartosz Baranowski",email = "bartosz.baranowski@novartis.com"},