[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

docs/source/common_issues.rst

@@ -856,19 +856,19 @@ generator function (https://peps.python.org/pep-0255/#specification-yield).
 .. code-block:: python
 
     from collections.abc import Generator, AsyncGenerator
-    
+
     async def async_gen() -> AsyncGenerator[int]:
         yield 1
-    
+
     def gen() -> Generator[int]:
         yield 1
-    
+
     async def async_func() -> int:
         return 1
-    
+
     def func() -> int:
         return 1
-    
+
     reveal_type(async_gen())  # AsyncGenerator[int, None]
     reveal_type(gen())        # Generator[int, None, None]
     reveal_type(async_func()) # Coroutine[Any, Any, int]
@@ -887,7 +887,7 @@ does not meet the expectation (generator type).
 .. code-block:: python
 
     from collections.abc import Generator
-    
+
     def gen() -> Generator[int]:
         ... # error: Missing return statement