feat(suse): add SUSE Linux Enterprise Server 15 SP5 and update SP4 eol date

[dirkmueller]

all dates are taken from https://www.suse.com/lifecycle#suse-linux-enterprise-server-15

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[knqyf263]

Thanks!