Change Goofys Docker image (clodproto/goofys -> ewoutp/goofys)

The new image is built in a much better way (2-stage build)
and is 10x smaller.

In terms of Goofys version recency, it's about the same..
Both images (and others alike) seem to not use version tags,
but rather some `:latest` (master), with ewoutp/goofys being a bit
more recent than clodproto/goofys.

Not using version tags is good (in this case),
because the last Goofys release seems to be from about a year ago
and there had been a bunch of bugfixes afterwards.

README.md

@@ -96,7 +96,7 @@ This playbook sets up your server using the following Docker images:
 
 - [postgres](https://hub.docker.com/_/postgres/) - the [Postgres](https://www.postgresql.org/) database server (optional)
 
-- [cloudproto/goofys](https://hub.docker.com/r/cloudproto/goofys/) - the [Goofys](https://github.com/kahing/goofys) Amazon [S3](https://aws.amazon.com/s3/) file-system-mounting program (optional)
+- [ewoutp/goofys](https://hub.docker.com/r/ewoutp/goofys/) - the [Goofys](https://github.com/kahing/goofys) Amazon [S3](https://aws.amazon.com/s3/) file-system-mounting program (optional)
 
 - [panubo/postfix](https://hub.docker.com/r/panubo/postfix/) - the [Postfix](http://www.postfix.org/) email server (optional)
 

roles/matrix-server/defaults/main.yml

@@ -198,7 +198,7 @@ matrix_coturn_turn_external_ip_address: "{{ ansible_host }}"
 
 
 matrix_s3_media_store_enabled: false
-matrix_s3_goofys_docker_image: "cloudproto/goofys:latest"
+matrix_s3_goofys_docker_image: "ewoutp/goofys:latest"
 matrix_s3_media_store_bucket_name: "your-bucket-name"
 matrix_s3_media_store_aws_access_key: "your-aws-access-key"
 matrix_s3_media_store_aws_secret_key: "your-aws-secret-key"