Upgrade black version (#7089)

stdlib/bz2.pyi

@@ -116,6 +116,7 @@ class BZ2File(BaseStream, IO[bytes]):
             buffering: Any | None = ...,
             compresslevel: int = ...,
         ) -> None: ...
+
     def read(self, size: int | None = ...) -> bytes: ...
     def read1(self, size: int = ...) -> bytes: ...
     def readline(self, size: SupportsIndex = ...) -> bytes: ...  # type: ignore[override]