gh-103636: issue warning for deprecated calendar constants (#103833)

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Co-authored-by: Éric <merwok@netwok.org>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>

Prince Roshan committed 3y ago

84e7d0f0c7f9a44d81be2d705ed4d401a6505356

Parent: ed29f52

Committed by GitHub <noreply@github.com> on 4/29/2023, 7:16:46 AM