chore: Increment version to 2.1.5

Updates the project version in pyproject.toml from 2.1.4 to 2.1.5.

Author: bvrvl

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "DiffCraft"
-version = "2.1.4"
+version = "2.1.5"
 authors = [
 
   { name="Saurabh Baral (bvrvl)", email="saurabh@bvrvl.com" },