chore(docker): update Ubuntu installation to current official Docker setup

- switch Docker APT repo config from docker.list to docker.sources
- keep GPG key in /etc/apt/keyrings/docker.asc
- remove installation of legacy docker-compose package
- use docker-compose-plugin as the recommended Compose integration
- add cleanup of old/conflicting Docker-related packages before install
- align installation steps with current Docker documentation for Ubuntu

docker-install-script.sh

@@ -1,14 +1,20 @@
+# Remove old/conflicting packages first if they exist
+sudo apt remove docker.io docker-compose docker-compose-v2 docker-doc podman-docker containerd runc
+
 sudo apt update
 sudo apt install ca-certificates curl
 sudo install -m 0755 -d /etc/apt/keyrings
 sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
 sudo chmod a+r /etc/apt/keyrings/docker.asc
 
-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
+sudo tee /etc/apt/sources.list.d/docker.sources > /dev/null <<EOF
+Types: deb
+URIs: https://download.docker.com/linux/ubuntu
+Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
+Components: stable
+Architectures: $(dpkg --print-architecture)
+Signed-By: /etc/apt/keyrings/docker.asc
+EOF
 
-sudo cat /etc/apt/sources.list.d/docker.list
 sudo apt update
-
-sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-compose
+sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin