fix event filter and dockerfile lint

.woodpecker/image.yaml

@@ -1,5 +1,4 @@
 variables:
-  - &file Dockerfile
   - &repo codeberg.org/${CI_REPO_OWNER}/io-exporter
 
 steps:
@@ -11,9 +10,8 @@ steps:
       dry_run: true
       repo: *repo
       tags: latest
-    # when:
-    #   event: [push]
-    #   path: *file
+    when:
+      event: [push]
 
   publish:
     image: docker.io/woodpeckerci/plugin-docker-buildx:latest
@@ -28,4 +26,3 @@ steps:
         from_secret: deploy_token
     when:
       event: [push]
-      path: *file

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.24-alpine as builder
+FROM golang:1.24-alpine AS builder
 
 RUN apk update
 RUN apk upgrade