dev@dev-ubuntu:~$ sudo apt update
Hit:1 //http://packages.microsoft.com/repos/code stable InRelease
Hit:2 //http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu jammy InRelease
Hit:3 //https://dl.google.com/linux/chrome/deb stable InRelease
Hit:4 //https://deb.nodesource.com/node_18.x jammy InRelease
Hit:5 //http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu jammy-updates InRelease
Ign:7 //http://security.ubuntu.com/ubuntu impish-security InRelease
Hit:8 //http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu jammy-backports InRelease
Hit:9 //https://brave-browser-apt-release.s3.brave.com stable InRelease
Hit:6 //https://cli-assets.heroku.com/apt ./ InRelease
Hit:10 //http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu jammy-security InRelease
Ign:11 https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 InRelease
Err:12 http://security.ubuntu.com/ubuntu impish-security Release
404 Not Found [IP: 2620:2d:4000:1::19 80]
Hit:13 https://repo.protonvpn.com/debian stable InRelease
Hit:14 https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 Release
Hit:16 https://ppa.launchpadcontent.net/danielrichter2007/grub-customizer/ubuntu jammy InRelease
Reading package lists... Done
W: https://cli-assets.heroku.com/apt/./InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
E: The repository 'http://security.ubuntu.com/ubuntu impish-security Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: https://repo.mongodb.org/apt/ubuntu/dists/focal/mongodb-org/5.0/Release.gpg: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
E: The repository 'http://security.ubuntu.com/ubuntu impish-security Release' no longer has a Release file.
我尝试删除存储库，但仍然不起作用。请