pigeonhole: update to 2.3.18

Signed-off-by: W. Michael Petullo <mike@flyn.org>
(cherry picked from commit c0fbb4f7fd)

mail/pigeonhole/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dovecot-pigeonhole
-PKG_VERSION_PLUGIN:=0.5.16
+PKG_VERSION_PLUGIN:=0.5.18
 PKG_VERSION_DOVECOT:=$(shell make --no-print-directory -C ../dovecot/ val.PKG_VERSION V=s)
 PKG_VERSION:=$(PKG_VERSION_DOVECOT)-$(PKG_VERSION_PLUGIN)
 PKG_RELEASE:=$(AUTORELEASE)
@@ -17,7 +17,7 @@ DOVECOT_VERSION:=2.3
 
 PKG_SOURCE:=dovecot-$(DOVECOT_VERSION)-pigeonhole-$(PKG_VERSION_PLUGIN).tar.gz
 PKG_SOURCE_URL:=https://pigeonhole.dovecot.org/releases/$(DOVECOT_VERSION)
-PKG_HASH:=5ca36780e23b99e6206440f1b3fe3c6598eda5b699b99cebb15d418ba3c6e938
+PKG_HASH:=a6d828f8d6f2decba5105343ece5c7a65245bd94e46a8ae4432a6d97543108a5
 
 PKG_MAINTAINER:=W. Michael Petullo <mike@flyn.org>
 PKG_LICENSE:=LGPL-2.1-or-later