ci: build multiplatform docker image

.github/workflows/docker.yml

@@ -4,9 +4,9 @@ on:
         branches:
             - main
 jobs:
-    docker-amd64:
+    docker:
         if: github.repository == 'OpenWF/SpaceNinjaServer'
-        runs-on: amd64
+        runs-on: ubuntu-latest
         steps:
             - name: Set up Docker buildx
               uses: docker/setup-buildx-action@v3
@@ -18,27 +18,10 @@ jobs:
             - name: Build and push
               uses: docker/build-push-action@v6
               with:
-                  platforms: linux/amd64
+                  platforms: linux/arm64,linux/amd64
                   push: true
                   tags: |
                       openwf/spaceninjaserver:latest
-                      openwf/spaceninjaserver:${{ github.sha }}
-    docker-arm64:
-        if: github.repository == 'OpenWF/SpaceNinjaServer'
-        runs-on: arm64
-        steps:
-            - name: Set up Docker buildx
-              uses: docker/setup-buildx-action@v3
-            - name: Log in to container registry
-              uses: docker/login-action@v3
-              with:
-                  username: openwf
-                  password: ${{ secrets.DOCKERHUB_TOKEN }}
-            - name: Build and push
-              uses: docker/build-push-action@v6
-              with:
-                  platforms: linux/arm64
-                  push: true
-                  tags: |
                       openwf/spaceninjaserver:latest-arm64
+                      openwf/spaceninjaserver:${{ github.sha }}
                       openwf/spaceninjaserver:${{ github.sha }}-arm64

docker-compose.yml

@@ -1,6 +1,5 @@
 services:
     spaceninjaserver:
-        # The image to use. If you have an ARM CPU, replace 'latest' with 'latest-arm64'.
         image: openwf/spaceninjaserver:latest
 
         volumes: