[Svn] [roundcube/roundcubemail] f85d4e: Require roundcube/plugin-installer 0.2.0

[Thomas B.]

  Branch: refs/heads/release-1.4
  Home:   https://github.com/roundcube/roundcubemail
  Commit: f85d4e523d0ff2ecc5edc37ae2ef354d5c38e315
      https://github.com/roundcube/roundcubemail/commit/f85d4e523d0ff2ecc5edc37ae2ef354d5c38e315
  Author: Thomas Bruederli <thomas at roundcube.net>
  Date:   2020-11-04 (Wed, 04 Nov 2020)

  Changed paths:
    M composer.json-dist

  Log Message:
  -----------
  Require roundcube/plugin-installer 0.2.0

... for compatibilty with Composer 2.0