fix push

.gitea/workflows/build-and-test.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Build Docker image
         run: |
           docker build -t ${{ vars.DOCKERHUB_IMAGENAME }} .
-          docker push
+          docker push ${{ vars.DOCKERHUB_IMAGENAME }}
 
       - name: Run tests (example)
         run: docker run --rm ${{ vars.DOCKERHUB_IMAGENAME }}