package/simple-mail: version bump 3.1.0

For change log since 3.0.0, see:
https://github.com/cutelyst/simple-mail/compare/v3.0.0...v3.1.0

Signed-off-by: Zoltan Gyarmati <zgyarmati@zgyarmati.de>
[Julien: add link to change log]
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/simple-mail/simple-mail.hash

@@ -1,5 +1,5 @@
 # Locally calculated
-sha256  f93e93843d11da5c4ec44225eba46ccb3e9710fd594a27b966901745429ed4f4  simple-mail-3.0.0.tar.gz
+sha256  d4a46b5c3f706669ffb3c9e4d2ff5e2bd892eda639f80784d862fa94a2082eb2  simple-mail-3.1.0.tar.gz
 
 # Hash for license file
 sha256  592987e8510228d546540b84a22444bde98e48d03078d3b2eefcd889bec5ce8c  LICENSE

package/simple-mail/simple-mail.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SIMPLE_MAIL_VERSION = 3.0.0
+SIMPLE_MAIL_VERSION = 3.1.0
 SIMPLE_MAIL_SITE = $(call github,cutelyst,simple-mail,v$(SIMPLE_MAIL_VERSION))
 SIMPLE_MAIL_INSTALL_STAGING = YES
 SIMPLE_MAIL_LICENSE = LGPL-2.1+