Bump version to 3.12.4

rmk135 · rmk135 · commit 49d74cb66a2d · 2018-07-26T10:23:16.000+03:00
diff --git a/src/dependency_injector/__init__.py b/src/dependency_injector/__init__.py
@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.12.3'
+__version__ = '3.12.4'
 """Version number that follows semantic versioning.
 
 :type: str
