The offline os-pkgs for some operating systems (such as RHEL9) lack the Docker installation package.

[leolingg]

Describe the bug
The offline os-pkgs for some operating systems (such as RHEL9) lack the Docker installation package.

I believe that Docker is still used by some users, so it is necessary to add the Docker installation package to the offline package.

I think this file is related: https://github.com/kubean-io/kubean/blob/main/build/os-packages/packages.yml#L49

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[leolingg]

@ErikJiang Can this requirement be supported?