Added Mac OS binaries.

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.6.5

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.6.4

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.6.2

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.6.1

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.5.0

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.4.0

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.3.0

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.2.0

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.1.0

The 1.0 release includes a rewrite of the mail server to async. All internals of mailcrab are now fully async.

Docker releases: https://hub.docker.com/repository/docker/marlonb/mailcrab/tags
Run docker image using: docker run --rm -p 1080:1080 -p 1025:1025 marlonb/mailcrab:v1.0.0