Apt-get-update data and signature failed Error

I have this def file where I am trying to create a container with ubuntu however I get this error when it is doing the apt-get update command, it was working fine for me like 2 months ago so not sure why it all of sudden gives me this error

def file: Bootstrap: docker
From: nvidia/cuda:11.7.1-cudnn8-devel-ubuntu22.04

%files
dsenvi.yaml
comm.py

%post
apt-get update -y
&& apt-get install -y build-essential
&& apt-get install -y wget
&& apt-get clean
&& rm -rf /var/lib/apt/lists/*
apt-get update -y
export DEBIAN_FRONTEND=noninteractive
apt-get install software-properties-common -y
add-apt-repository ppa:deadsnakes/ppa -y

Error: INFO: Running post scriptlet