docker workflow use correct secret

.github/workflows/joystream-apps-docker.yml

@@ -18,7 +18,7 @@ jobs:
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2