ci: fix publishing arm64 images

Author: porcellus

.github/workflows/publish-dev-docker.yml

@@ -38,5 +38,6 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           push: true
+          platforms: linux/amd64,linux/arm64
           tags: ${{ vars.DOCKERHUB_USERNAME }}/supertokens-core:dev-branch-${{ steps.set_tag.outputs.TAG }}
           file: .github/helpers/Dockerfile