fix typo in utils.py
fix typo in utils.py

Signed-off-by: jonas serrano <5c94566d7d4b491d6135161c28bda2f8ce389918@gmail.com>

firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker,firecracker-microvm/firecracker