Task: port multi-platform support from deploy-master.yml to release.yml

[erikmd]

Related user(s):

@CJs0800 @AltGr @yurug

Related issue(s) or PR(s):

• Task: auto-deploy Docker images of master and tags for arm64 arch as well #611

Related project scope(s):

build

The problem:

• As a follow-up of Task: auto-deploy Docker images of master and tags for arm64 arch as well #611, ocamlsf/learn-ocaml:master now supports the arm64 arch:

  
  — https://hub.docker.com/r/ocamlsf/learn-ocaml/tags

• FYI I've just tested this succesfully on a MacBook Air (Apple M1), where the platform warning does not show up anymore after pulling the master image:

% docker run --rm -v "$PWD/demo-repository:/repository" -p 8080:8080 ocamlsf/learn-ocaml:1.0.0  # old release

WARNING: The requested image\'s platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
Learnocaml v.1.0.0 running.
Updating app at ./www
Learnocaml server v.1.0.0 starting on port 8080
Initial teacher token created: X-DJU-OCG-JA9-4SS
^CSIGINT caught: stopping

% docker pull ocamlsf/learn-ocaml:master
% docker run --rm -v "$PWD/demo-repository:/repository" -p 8080:8080 ocamlsf/learn-ocaml:master

Learnocaml v1.1.0 running.
Updating app at ./www
Learnocaml server v1.1.0 starting on port 8080
Initial teacher token created: X-USS-1NS-ZSJ-URO
^CSIGINT caught: stopping

• However, this change only deals with the workflow deploy-master.yml

Wanted solution:

• To Do: also apply this change to release.yml (the workflow file for tags)

Considered alternatives:

N/A

Additional context:

No response