fix: only change version in manifest and not setup, let CI do that

Author: DamienGilliard

src/gh/diffCheck/setup.py

@@ -4,7 +4,7 @@
 
 setup(
     name="diffCheck",
-    version="2.0.0",
+    version="1.3.1",
     packages=find_packages(),
     install_requires=[
         "numpy",