v1.2.0

• Migrate CI to Github actions (Jonathan Tron)
• Add a new sequel-rails hook: after_new_connection which
  sets Sequel's after_connect, and is triggered for every
  new connection (@kamilpavlicko)
  #186
• Database drop fix for Sequel (>= 5.38.0) (@AnotherRegularDude)
  #184
• Fix for simplified Spring integration (Janko Marohnić, Adrián Mugnolo)
  #181
• Simplify Spring integration (Janko Marohnić)
  #180