update calendar submodule
fixes #17437. Fix transitions on IE.
Fixes #17418. Set body's background style using dojo/domReady, not dojo/ready, to ensure it is already set at widget initialization time. Thanks Sebastien Brunot (IBM, CCLA)
Prevent _dbpostscript() from running twice for widgets with dojox/mvc/_Controller mixed in, fixes #17439.
Stop index-based Stateful notification for splice additions, fixes #17278.