libzmq: Update from 4.1.5 to 4.1.6

packages/libzmq/build.sh

@@ -1,7 +1,6 @@
 TERMUX_PKG_HOMEPAGE=http://zeromq.org/
 TERMUX_PKG_DESCRIPTION="Fast messaging system built on sockets. C and C++ bindings. aka 0MQ, ZMQ."
-TERMUX_PKG_VERSION=4.1.5
-TERMUX_PKG_BUILD_REVISION=1
+TERMUX_PKG_VERSION=4.1.6
 TERMUX_PKG_SRCURL=https://github.com/zeromq/zeromq4-1/releases/download/v${TERMUX_PKG_VERSION}/zeromq-${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_DEPENDS="libsodium"
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-libsodium"