Issue #23883: Add missing APIs to calendar.__all__

Patch by Joel Taddei and Jacek KoƂodziej.
diff --git a/Misc/ACKS b/Misc/ACKS
index 1df5d24..ebc0d5d 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1419,6 +1419,7 @@
 John Szakmeister
 Amir Szekely
 Maciej Szulik
+Joel Taddei
 Arfrever Frehtes Taifersar Arahesis
 Hideaki Takahashi
 Takase Arihiro