gnuplot: Update from 5.2.1 to 5.2.3

packages/gnuplot/build.sh

@@ -1,7 +1,7 @@
 TERMUX_PKG_HOMEPAGE=http://gnuplot.info/
 TERMUX_PKG_DESCRIPTION="Command-line driven graphing utility"
-TERMUX_PKG_VERSION=5.2.1
-TERMUX_PKG_SHA256=7dc6b0fb6b321691e89e344387310a8e6614f0c4e5eb15a90dc742a53d807e88
+TERMUX_PKG_VERSION=5.2.3
+TERMUX_PKG_SHA256=feb58c9358d9d129e00507f3b34d4b13c4caea3f004325c587f8caafe5dbe724
 TERMUX_PKG_SRCURL=https://downloads.sourceforge.net/project/gnuplot/gnuplot/${TERMUX_PKG_VERSION}/gnuplot-${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--without-x --with-lua=no --with-bitmap-terminals"
 TERMUX_PKG_DEPENDS="libandroid-support, readline, pango, libgd"