Bump version to 4.9.0

docs/main/changelog.rst

@@ -7,8 +7,8 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
-Development version
--------------------
+4.9.0
+-----
 - Add ``.dependencies`` attribute to the ``DeclarativeContainer`` and ``DynamicContainer``.
   It returns dictionary of container ``Dependency`` and ``DependenciesContainer`` providers.
   See issue `#357 <https://github.com/ets-labs/python-dependency-injector/issues/357>`_.

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Top-level package."""
 
-__version__ = '4.8.3'
+__version__ = '4.9.0'
 """Version number.
 
 :type: str