package/dovecot-pigeonhole: bump version to 0.5.2

Switched _SITE to https.

Release notes:
https://www.dovecot.org/list/dovecot-news/2018-June/000384.html

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dovecot-pigeonhole/dovecot-pigeonhole.hash

@@ -1,3 +1,3 @@
 # Locally computed after checking signature
-sha256 e3b0aa59261881bcb0d33a6c398f3cb5f9f75e077e67bae175cf33c362577547  dovecot-2.3-pigeonhole-0.5.1.tar.gz
+sha256 950e8e15c58e539761255e140dd3678dd2477fa432a5f2b804e53821bdc02535  dovecot-2.3-pigeonhole-0.5.2.tar.gz
 sha256 fc9e9522216f2a9a28b31300e3c73c1df56acc27dfae951bf516e7995366b51a  COPYING

package/dovecot-pigeonhole/dovecot-pigeonhole.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-DOVECOT_PIGEONHOLE_VERSION = 0.5.1
+DOVECOT_PIGEONHOLE_VERSION = 0.5.2
 DOVECOT_PIGEONHOLE_SOURCE = dovecot-2.3-pigeonhole-$(DOVECOT_PIGEONHOLE_VERSION).tar.gz
-DOVECOT_PIGEONHOLE_SITE = http://pigeonhole.dovecot.org/releases/2.3
+DOVECOT_PIGEONHOLE_SITE = https://pigeonhole.dovecot.org/releases/2.3
 DOVECOT_PIGEONHOLE_LICENSE = LGPL-2.1
 DOVECOT_PIGEONHOLE_LICENSE_FILES = COPYING
 DOVECOT_PIGEONHOLE_DEPENDENCIES = dovecot