Prior this fix, creating an action with (e.g.)
additional_context : {create: 0} wouldn't have any effect
on calendar view.
Now, if this context key is added, the user won't be able to create.
Also true for delete and write.
closes odoo/odoo#97538
X-original-commit: 8d108f32b8333f0698427f9a7f12765c8addd8ae
Signed-off-by: Laurent Stukkens (ltu) <ltu@odoo.com>