Fix race condition in create_stdio()

Issue #24891: Fix a race condition at Python startup if the file descriptor
of stdin (0), stdout (1) or stderr (2) is closed while Python is creating
sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set
to None if the creation of the object failed, instead of raising an OSError
exception. Initial patch written by Marco Paolini.
diff --git a/Misc/ACKS b/Misc/ACKS
index 9af7c98..948e542 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1037,6 +1037,7 @@
 Yongzhi Pan
 Martin Panter
 Mathias Panzenböck
+Marco Paolini
 M. Papillon
 Peter Parente
 Alexandre Parenteau