Fixes for incorrect build path

.github/workflows/build-image-debian.yaml

@@ -42,7 +42,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           builder: ${{ steps.buildx.outputs.name }}
-          context: .
+          context: ./debian/Dockerfile
           build-args: INVOICENINJA_VERSION=5-develop
           platforms: linux/amd64,linux/arm64
           tags: invoiceninja/invoiceninja-debian:cache

.github/workflows/publish-image.yaml

@@ -14,7 +14,7 @@ jobs:
           - image: invoiceninja/invoiceninja
             context: ./alpine/5/
           - image: invoiceninja/invoiceninja-debian
-            context: ./debian/
+            context: .
 
     steps:
       - name: Checkout