Update csv stubs for Python3.12 (#10250)

stdlib/_csv.pyi

@@ -1,3 +1,4 @@
+import sys
 from _typeshed import SupportsWrite
 from collections.abc import Iterable, Iterator
 from typing import Any
@@ -9,6 +10,9 @@ QUOTE_ALL: Literal[1]
 QUOTE_MINIMAL: Literal[0]
 QUOTE_NONE: Literal[3]
 QUOTE_NONNUMERIC: Literal[2]
+if sys.version_info >= (3, 12):
+    QUOTE_STRINGS: Literal[4]
+    QUOTE_NOTNULL: Literal[5]
 
 # Ideally this would be `QUOTE_ALL | QUOTE_MINIMAL | QUOTE_NONE | QUOTE_NONNUMERIC`
 # However, using literals in situations like these can cause false-positives (see #7258)