update version to: 1.12.1 (github action)

Author: ArieLevs

setup.py

@@ -11,7 +11,7 @@
 
 setuptools.setup(
     name="pybump",
-    version="1.12.0",
+    version="1.12.1",
     author="Arie Lev",
     author_email="levinsonarie@gmail.com",
     description="Python version bumper",