Bump version to 4.34.0

Author: rmk135

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
--------------------
+4.34.0
+------
 - Add option ``envs_required`` for configuration provider ``.from_yaml()`` and ``.from_ini()``
   methods. With ``envs_required=True`` methods ``.from_yaml()`` and ``.from_ini()`` raise
   an exception when encounter an undefined environment variable in the configuration file.

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Top-level package."""
 
-__version__ = '4.33.0'
+__version__ = '4.34.0'
 """Version number.
 
 :type: str