CI: enable arm64 build

.drone.yml

@@ -18,10 +18,10 @@ steps:
         from_secret: docker_password
 ---
 kind: pipeline
-name: build_arm
+name: build_arm64
 platform:
   os: linux
-  arch: arm
+  arch: arm64
 
 steps:
   - name: docker
@@ -29,7 +29,7 @@ steps:
     settings:
       repo: ducampsv/docker-backup-postgres
       auto_tag: "true"
-      auto_tag_suffix: arm
+      auto_tag_suffix: arm64
       username:
         from_secret: docker_username
       password:
@@ -52,9 +52,10 @@ steps:
         from_secret: docker_password
       platforms:
         - linux/amd64
-          #- linux/arm
+        - linux/arm64
 depends_on:
   - build_amd64
+  - build_arm64
 ---
 kind: secret
 name: docker_username