testing/mailmunge: upgrade to 3.12

testing/mailmunge/APKBUILD

 # Contributor: Duncan Bellamy <dunk@denkimushi.com>
 # Maintainer: Duncan Bellamy <dunk@denkimushi.com>
 pkgname=mailmunge
-pkgver=3.11
+pkgver=3.12
 pkgrel=0
 pkgdesc="email filtering framework that uses libmilter to interface with Postfix or Sendmail"
 url="https://mailmunge.org"
@@ -72,5 +72,5 @@ package() {
 }
 
 sha512sums="
-ab5d5ddb69c48faf6857c7afa48cc8c3c9b69e73b78604765d4feebb0827d15fd84789882855f98936bb5f1f38d881a0a4362a1e28eb8f08253d9488ef33ee6a  mailmunge-3.11.tar.gz
+d10c3cecb852f42d273bf135bde54002bc52657f935a9c31a0514980554a58de674a73010e58dea343373dca33d0a355842bf598054a87fa12624f779ac502f2  mailmunge-3.12.tar.gz
 "