CI Improvements

This tracking issue covers what is needed to make the CI of our repositories mature.

• Build the server variant on the kernel, drivers, RedoxFS and relibc CI using Redoxer, this test should finish successfully
• Boot the server variant on the kernel, drivers, RedoxFS and relibc CI using Redoxer, this test must give a success from the Ion shell (to catch kernel panics)
• Add permutation testing for the boot process
• Enforce Clippy lints
• #1565