dovecot: update to 2.3.15.

srcpkgs/dovecot/template

@@ -1,8 +1,8 @@
 # Template file for 'dovecot'
 # revbump dovecot-plugin-pigeonhole when updating dovecot!
 pkgname=dovecot
-version=2.3.14
-revision=2
+version=2.3.15
+revision=1
 build_style=gnu-configure
 configure_args="--with-moduledir=/usr/lib/dovecot/modules --with-sql=plugin
  --disable-static --with-pam --with-mysql --with-pgsql --with-lucene
@@ -19,7 +19,7 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="LGPL-2.1-or-later"
 homepage="https://dovecot.org/"
 distfiles="${homepage}/releases/2.3/${pkgname}-${version}.tar.gz"
-checksum=c8b3d7f3af1e558a3ff0f970309d4013a4d3ce136f8c02a53a3b05f345b9a34a
+checksum=21bbdd5d45957a99133de8b7e71813ecb73d9476c89dfc63479e9102b3553590
 keep_libtool_archives=yes
 
 if [ "$CROSS_BUILD" ]; then