Special Characters in PG_PASSWORD breaks URL encoding

[matthewgreenwaldagility]

If you have a password like: hd:,8_zt@}3C>]#=dHYadKb=

The special characters will break URL encoding like so:

sequin ** (Ecto.InvalidURLError) invalid url
  postgres://postgres:hd:,8_zt@}3C>]#=dHYadKb=@postgres-db.abcdefg12345.us-east-1.rds.amazonaws.com

sequin/config/runtime.exs

Line 124 in 46ce4e1

"postgres://#{username}:#{password}@#{hostname}:#{port}/#{database}"

The fix is quite simple and I have tested the code myself.

    encoded_password = URI.encode_www_form(password)
    "postgres://#{username}:#{encoded_password}@#{hostname}:#{port}/#{database}"