fix: test suite passing

scripts/test.sh

@@ -1,12 +1,15 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-tag=$(uuidgen)
+IMAGE=${IMAGE:-"andrejusk/dotfiles"}
+tag=${TAG:-uuidgen}
+
 docker build . \
     --build-arg UUID=$tag \
-    --tag dotfiles:$tag \
+    --cache-from $IMAGE \
+    --tag $IMAGE:$tag \
     --target test
 
 docker run \
     -v "$(pwd)"/logs:/home/test-user/.dotfiles/logs \
-    dotfiles:$tag
+    $IMAGE:$tag