postgresql: security bump to version 9.5.4
Fixes:
CVE-2016-5423 - CASE/WHEN with inlining can cause untrusted pointer
dereference (bsc#993454).
CVE-2016-5424 - Fix client programs' handling of special characters in
database and role names (bsc#993453).
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>