zeromq: update to 4.3.0.

Closes: #5211 [via git-merge-pr]

srcpkgs/zeromq/template

@@ -1,6 +1,6 @@
 # Template file for 'zeromq'
 pkgname=zeromq
-version=4.2.5
+version=4.3.0
 revision=1
 build_style=gnu-configure
 configure_args="--with-libsodium"
@@ -11,7 +11,7 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
 license="LGPL-3.0-or-later"
 homepage="http://www.zeromq.org"
 distfiles="https://github.com/zeromq/libzmq/releases/download/v${version}/zeromq-${version}.tar.gz"
-checksum=cc9090ba35713d59bb2f7d7965f877036c49c5558ea0c290b0dcc6f2a17e489f
+checksum=8e9c3af6dc5a8540b356697081303be392ade3f014615028b3c896d0148397fd
 
 zeromq-devel_package() {
 	depends="${sourcepkg}-${version}_${revision}"