[openssl-gost] [gost-engine/engine] fdefe3: Use alpha6 openssl

[Dmitry Belyavskiy <noreply@github.com>]

  Branch: refs/heads/master
  Home:   https://github.com/gost-engine/engine
  Commit: fdefe3002ecb5f769f57fba099222eabd6bfffd2
      https://github.com/gost-engine/engine/commit/fdefe3002ecb5f769f57fba099222eabd6bfffd2
  Author: Dmitry Belyavskiy <beldmit@gmail.com>
  Date:   2020-08-11 (Tue, 11 Aug 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Use alpha6 openssl