Dockerfile: acme.sh should be upgraded after installation

[kirisakow]

Problem

As the Seafile image evolves, I notice however that the version of acme.sh remains the same: v3.0.2 (while as of today the latest is v3.0.8). This goes against the official acme.sh documentation, which states:

acme.sh is in constant development, so it's strongly recommended to use the latest code.

Possible solution

Dockerfile should include instructions for upgrading acme.sh after installation. In other words, the command

seafile-docker/image/seafile_11.0/Dockerfile

Line 53 in 364840a

cd /scripts/acme.sh && /scripts/acme.sh/acme.sh --install

should be

cd /scripts/acme.sh && /scripts/acme.sh/acme.sh --install \
                    && /scripts/acme.sh/acme.sh --upgrade \
                    && ln -sf /root/.acme.sh/acme.sh /scripts/acme.sh/acme.sh