updated Ganymede image

.gitea/workflows/build-jupyter-ganymede.yaml

@@ -9,14 +9,16 @@ jobs:
   "Build Jupyter Ganymede docker images":
     runs-on: woryzen
     steps:
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
+          name: multiplatform-builder
           driver: docker-container
+          cleanup: false
+          platforms: |
+            linux/amd64
+            linux/arm64
       -
         name: Login to Gitea container registry
         uses: docker/login-action@v3
@@ -34,5 +36,3 @@ jobs:
           push: true
           pull: true
           tags: gitea.woggioni.net/woggioni/jupyter-ganymede:latest
-          cache-from: type=local,src=/home/luser/.cache/buildx
-          cache-to: type=local,dest=/home/luser/.cache/buildx,mode=max