Merge branch 'release/3.12.0' into master

docs/main/changelog.rst

@@ -7,6 +7,10 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+3.12.0
+------
+- Regenerate C sources using Cython 0.28.2.
+
 3.11.3
 ------
 - Fix padding problem in code samples in docs.

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.11.3'
+__version__ = '3.12.0'
 """Version number that follows semantic versioning.
 
 :type: str