package/dovecot-pigeonhole: bump version to 0.5.18

Release notes:
https://github.com/dovecot/pigeonhole/blob/release-0.5.18/NEWS

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/dovecot-pigeonhole/dovecot-pigeonhole.hash

@@ -1,3 +1,3 @@
 # Locally computed after checking signature
-sha256  3cc4a3de6d7e27bd99ac59b99faa161287f78167272699a22591798ffcf84512  dovecot-2.3-pigeonhole-0.5.17.1.tar.gz
+sha256  a6d828f8d6f2decba5105343ece5c7a65245bd94e46a8ae4432a6d97543108a5  dovecot-2.3-pigeonhole-0.5.18.tar.gz
 sha256  fc9e9522216f2a9a28b31300e3c73c1df56acc27dfae951bf516e7995366b51a  COPYING

package/dovecot-pigeonhole/dovecot-pigeonhole.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DOVECOT_PIGEONHOLE_VERSION = 0.5.17.1
+DOVECOT_PIGEONHOLE_VERSION = 0.5.18
 DOVECOT_PIGEONHOLE_SOURCE = dovecot-2.3-pigeonhole-$(DOVECOT_PIGEONHOLE_VERSION).tar.gz
 DOVECOT_PIGEONHOLE_SITE = https://pigeonhole.dovecot.org/releases/2.3
 DOVECOT_PIGEONHOLE_LICENSE = LGPL-2.1