Fix: Coolify docker installer fail on Fedora 41 with DNF5

[NexiaMoe]

Changes

• fix: Docker installation failure on Fedora 41 with dnf5

3. Check Docker Installation. 
 - Docker is not installed. Installing Docker. It may take a while.
 - Until then, here's a joke for you:

# Executing docker install script, commit: e5543d473431b782227f8908005543bb4389b8de
+ sh -c 'dnf install -y -q dnf-plugins-core'
Package "dnf-plugins-core-4.9.0-1.fc41.noarch" is already installed.

Nothing to do.
+ sh -c 'dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo'
Unknown argument "--add-repo" for command "config-manager". Add "--help" for more information about the arguments.

Based on my observation, it fails with the Rancher Docker installer. I added a new case for Fedora to handle Docker installation. The script checks for the presence of dnf5 and uses the updated addrepo options if available; otherwise, it falls back to using dnf.

Issues

• fix #

[peaklabs-dev]

Thank you for the PR 💜.