feat: add arch imag

.woodpecker/arch-docker.yml

@@ -0,0 +1,23 @@
+platform: 'linux/amd64'
+
+when:
+  - path: 
+      - 'arch/Dockerfile'
+      - '.woodpecker/arch-docker.yml'
+    event: [push]
+  - event: [cron]
+
+pipeline:
+  build:
+    image: 'woodpeckerci/plugin-docker-buildx'
+    secrets: 
+      - 'docker_username'
+      - 'docker_password'
+    settings:
+      registry: 'git.rustybever.be'
+      repo: 'git.rustybever.be/vieter-v/vieter-builder'
+      tags:
+        - 'latest'
+      platforms: [ 'linux/arm64/v8', 'linux/amd64' ]
+      mtu: 1300
+      context: 'arch'