Update platform name

.woodpecker.yml

@@ -1,20 +1,7 @@
 ---
-when:
-  event:
-    exclude:
-      - pull_request
-
 labels:
-  platform: linux/aarch64
+  platform: linux/arm64
 
 steps:
   docker-build-and-publish:
     image: plugins/docker
-    settings:
-      registry: registry.nemunai.re
-      repo: registry.nemunai.re/dovecot
-      auto_tag: true
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password