解决Ubuntu apt 错误：Certificate verification failed: The certificate is NOT trusted

Problem Description:

One day, suddenly apt install could not download the software package.

Then sudo apt update was invalid, and a bunch of errors appeared:

忽略:1 https://mirrors.ustc.edu.cn/ubuntu-ports jammy InRelease
忽略:2 https://mirrors.ustc.edu.cn/ubuntu-ports jammy-updates InRelease
忽略:3 https://mirrors.ustc.edu.cn/ubuntu-ports jammy-backports InRelease
忽略:4 https://mirrors.ustc.edu.cn/ubuntu-ports jammy-security InRelease
错误:5 https://mirrors.ustc.edu.cn/ubuntu-ports jammy Release
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate.  Could not handshake: Error in the certificate verification. [IP: 202.141.160.110 443]
命中:6 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu bionic InRelease
错误:7 https://mirrors.ustc.edu.cn/ubuntu-ports jammy-updates Release
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certific