Bump version to 4.3.8

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`_
 
+4.3.8
+-----
+- Add a hotfix to support wiring for ``FastAPI`` endpoints.
+
 4.3.7
 -----
 - Fix race in ``ThreadSafeSingleton``. Many thanks to

src/dependency_injector/__init__.py

@@ -1,6 +1,6 @@
 """Top-level package."""
 
-__version__ = '4.3.7'
+__version__ = '4.3.8'
 """Version number.
 
 :type: str