Updated docker login in workflow

.github/workflows/master.yml

@@ -25,7 +25,7 @@ jobs:
         uses: docker/login-action@v1 
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          password: ${{ secrets.DOCKER_TOKEN }}
 
       - name: Build and push docker image
         id: docker_build