mysql5.7 fails on migration of VERSION=4

[cat-in-136]

Executing bundle exec rake redmine:plugins NAME=redmine_scheduling_poll fails as follows:

== 4 AddTimestampToSchedulingPollItemsAndFixTimestampOfSchedulingVotes: migrating 
-- change_table(:scheduling_poll_items, {})
   -> 1.0714s
-- rename_column(:scheduling_votes, :create_at, :created_at)
rake aborted!
StandardError: An error has occurred, all later migrations canceled:

Mysql2::Error: Invalid default value for 'created_at': ALTER TABLE `scheduling_votes` CHANGE `create_at` `created_at` timestamp DEFAULT NULL

Environment:

• mysql 5.7 (using docker.io/mysql:5.7 container)
• redmine 4.0
• ruby 2.5.3p105

[cat-in-136]

https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sqlmode_no_zero_date