Removed the older version, which is not in Virtualbox repositories

.gitea/workflows/docker-publish.yaml

@@ -17,8 +17,6 @@ jobs:
         include:
           - image: git.plantroon.com/plantroon/vagrant-vbox
             version: 7.0.8
-          - image: git.plantroon.com/plantroon/vagrant-vbox
-            version: 7.0.6            
           - image: git.plantroon.com/plantroon/vagrant-vbox
             version: 6.1.44
     permissions:
@@ -41,7 +39,7 @@ jobs:
         id: meta
         uses: https://github.com/docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
         with:
-          images: plantroon/vbox
+          images: ${{ matrix.image }}
 
       - name: Build and push Docker image
         id: build-and-push
@@ -49,7 +47,7 @@ jobs:
         with:
           context: .
           push: true
-          tags: ${{ matrix.image}}:${{ matrix.version }}
+          tags: ${{ matrix.image }}:${{ matrix.version }}
           labels: ${{ steps.meta.outputs.labels }}
           build-args: VERSION=${{ matrix.version }}