Add docker multiarch build and push to release

Co-authored-by: Ben Johnson <benbjohnson@yahoo.com>

.github/workflows/release.linux.yml

@@ -1,7 +1,7 @@
 on:
   release:
     types:
-      - created
+      - published
   pull_request:
     types:
       - opened
@@ -132,4 +132,3 @@ jobs:
         run: sleep 60 && gh workflow run deploy.yml -R benbjohnson/litestream-test-runner -f run_id=${{ github.run_id }} -f litestream_version=${{ github.sha }}
         env:
           GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }}
-