Prepare for release 22.8.0 (#260)

Author: AlexWaygood

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log
 
-## Unreleased
+## 22.8.0
 
 New error codes:
 * Y046: Detect unused `Protocol`s.

pyi.py

@@ -45,7 +45,7 @@ def unparse(node: ast.AST) -> str:
     # and mypy thinks typing_extensions is part of the stdlib.
     from typing_extensions import Literal, TypeGuard
 
-__version__ = "22.7.0"
+__version__ = "22.8.0"
 
 LOG = logging.getLogger("flake8.pyi")