libostree: bump to version 2018.4

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libostree/libostree.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256 e54d0ac024f718cfa77b93d57c91c574bebcb937c88e1e30c3d1127e9360fd4b  libostree-2018.3.tar.xz
+sha256 f5b1e083ed630fd32a263731fe9595ecdd07cfd5cba3e354931f481c4181de1c  libostree-2018.4.tar.xz
 sha256 b7993225104d90ddd8024fd838faf300bea5e83d91203eab98e29512acebd69c  COPYING

package/libostree/libostree.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBOSTREE_VERSION = 2018.3
+LIBOSTREE_VERSION = 2018.4
 LIBOSTREE_SOURCE = libostree-$(LIBOSTREE_VERSION).tar.xz
 LIBOSTREE_SITE = https://github.com/ostreedev/ostree/releases/download/v$(LIBOSTREE_VERSION)