package/pinentry: bump to version 1.3.1
For change log, see:
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=pinentry.git;a=blob;f=NEWS;h=a07d18953341a4eb65c9873e64c06bc7c642606d
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>