Supports installing linyaps via DEB822 format on `Ubuntu 24.04`

[linghengqian]

• I personally expect support for installing linyaps via the DEB822 format on Ubuntu 24.04. Currently, the outdated /etc/apt/sources.list is still being used for https://linyaps.org.cn/en/guide/start/install.html#ubuntu-24-04 . See https://discourse.ubuntu.com/t/spec-apt-deb822-sources-by-default/29333 .
• 
• A notable feature of the DEB822 format compared to /etc/apt/sources.list is its friendliness towards Here Documents. I'll use a configuration change in Docker Engine as an example.
• For /etc/apt/sources.list,

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

• For DEB822 format,

sudo tee /etc/apt/sources.list.d/docker.sources <<EOF
Types: deb
URIs: https://download.docker.com/linux/ubuntu
Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
Components: stable
Signed-By: /etc/apt/keyrings/docker.asc
EOF