Update docker-image-dev.yml

Remove pp support

Author: MaxWaldorf

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

@@ -68,7 +68,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          platforms: linux/amd64,linux/arm64/v8,linux/ppc64le
+          platforms: linux/amd64,linux/arm64/v8
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.guac.outputs.tags }}
           labels: ${{ steps.guac.outputs.labels }}