added dry run

.woodpecker.yml

@@ -14,6 +14,17 @@ variables:
   - &repo git.jmbit.de/jmbit/docker-hugo
 
 steps:
+    dryrun:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      dockerfile: *file
+      platforms: linux/arm/v7,linux/arm64/v8,linux/amd64,linux/ppc64le
+      dry_run: true
+      repo: *repo
+      tags: latest
+    when:
+      event: pull_request
+      path: *file
   publish:
     image: woodpeckerci/plugin-docker-buildx
     settings:
@@ -29,4 +40,6 @@ steps:
         from_secret: dockerhub_token
     when:
       event: push
+      path: *file
+