package/dovecot-pigeonhole: bump version to 0.5.21

Release notes:
https://dovecot.org/mailman3/archives/list/dovecot-news@dovecot.org/thread/Y5SJWAIAVEAQ2KKSWJM7VSJUUFRMFAH5/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/dovecot-pigeonhole/dovecot-pigeonhole.hash

@@ -1,3 +1,3 @@
 # Locally computed after checking signature
-sha256  ae32bd4870ea2c1328ae09ba206e9ec12128046d6afca52fbbc9ef7f75617c98  dovecot-2.3-pigeonhole-0.5.20.tar.gz
+sha256  1ca71d2659076712058a72030288f150b2b076b0306453471c5261498d3ded27  dovecot-2.3-pigeonhole-0.5.21.tar.gz
 sha256  fc9e9522216f2a9a28b31300e3c73c1df56acc27dfae951bf516e7995366b51a  COPYING

package/dovecot-pigeonhole/dovecot-pigeonhole.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DOVECOT_PIGEONHOLE_VERSION = 0.5.20
+DOVECOT_PIGEONHOLE_VERSION = 0.5.21
 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