Recommended update for libxcb

This update for libxcb fixes the following issues:

- Failure to retry if authentication was rejected by the X server (boo#1043221)
- KDEinit may have crashed when network connection changes alter the hostname (boo#906622)

Fixed bugs
bnc#906622
[auth, hostname] KDEinit crashes when wired connection is disabled
bnc#1043221
sddm erase the whole content of ~/.Xauthority
Selected Binaries
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