test: use docker buildx bake

Signed-off-by: Xe Iaso <me@xeiaso.net>

test/git-clone/docker-compose.yaml

@@ -10,7 +10,7 @@ services:
       - ./var/repos:/srv/git
 
   anubis:
-    image: ko.local/anubis
+    image: ghcr.io/techarohq/anubis:devel-docker
     environment:
       BIND: ":8005"
       TARGET: http://cgit:80

test/git-clone/test.sh

@@ -9,9 +9,7 @@ set -u
 
 (
   cd ../.. && \
-  npm ci && \
-  npm run assets \
-  ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
+  docker buildx bake
 )
 
 rm -rf ./var/repos ./var/clones