Recommended update for yast2-users

This update for yast2-users provides the following fixes:

- Allow the root user to use a public key for authentication (fate#324690)
- Improve public key selector help (fate#324690)
- Add public keys handling support in an installed system (fate#324690)
- Improve the label for importing public SSH keys to clearly state it is about SSH (bsc#1118617)

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
Better label for importing ssh key
Selected Binaries
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