ci: Publish arm64 as well

Author: AiyionPrime

.github/workflows/docker-publish.yml

@@ -19,9 +19,16 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
+          platforms: linux/amd64,linux/arm64
           context: .
           push: true
           tags: aiyion/gluon-jenkins:latest