ci: use workflows

.woodpecker/build.yml

@@ -0,0 +1,12 @@
+when:
+  event: push
+  branch: main
+
+pipeline:
+  build-docker-image:
+    image: plugins/docker
+    settings:
+      repo: ${ORG_REGISTRY}/${CI_REPO}
+      tags:
+        - ${CI_COMMIT_BRANCH}
+        - ${CI_COMMIT_SHA:0:8}

.woodpecker/deploy.yml

@@ -1,15 +1,14 @@
+depend_on:
+  - build
+
+skip_clone: true
+
 when:
+  event: [push, deployment]
   branch: main
+  environment: prod
 
 pipeline:
-  build-docker-image:
-    image: plugins/docker
-    settings:
-      repo: ${ORG_REGISTRY}/${CI_REPO}
-      tags:
-        - ${CI_COMMIT_BRANCH}
-        - ${CI_COMMIT_SHA:0:8}
-
   deploy:
     image: ${ORG_REGISTRY}/drone_plugins/docker_stack
     pull: true