feat(forgejo): Allow setting S3 checksum algorithm as variable

Can take either `default` (for MinIO, garage, AWS) or `md5` (Cloudflare,
Backblaze).

roles/forgejo/defaults/main.yml

@@ -42,6 +42,7 @@ forgejo_use_ci: false
 forgejo_use_s3: false
 forgejo_s3_use_ssl: true
 forgejo_s3_bucket_lookup: auto # auto|dns|path
+forgejo_s3_checksum: default # default|md5
 # forgejo_s3_endpoint:
 # forgejo_s3_region:
 # forgejo_s3_key:

roles/forgejo/templates/docker-stack.yml.j2

@@ -59,6 +59,7 @@ services:
       - FORGEJO__storage__MINIO_SECRET_ACCESS_KEY={{ forgejo_s3_secret }}
       - FORGEJO__storage__MINIO_BUCKET={{ forgejo_s3_bucket }}
       - FORGEJO__storage__MINIO_LOCATION={{ forgejo_s3_region }}
+      - FORGEJO__storage__MINIO_CHECKSUM_ALGORITHM={{ forgejo_s3_checksum }}
 {% endif %}
     networks:
       - "{{ docker_swarm_public_network_name }}"