ci: add more platforms

Author: barelyhuman

.github/workflows/docker-publish.yml

@@ -1,14 +1,8 @@
 name: Docker
 
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
 on:
   push:
     branches: [ "pro" ]
-    # Publish semver tags as releases.
     tags: [ 'v*.*.*' ]
   pull_request:
     branches: [ "pro" ]
@@ -77,6 +71,7 @@ jobs:
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64,linux/arm64
           cache-from: type=gha
           cache-to: type=gha,mode=max