bump(main/iperf3): 3.19

Switch to GitHub generated tarball because the release artifact is absent.

Author: termux-pacman-bot

packages/iperf3/build.sh

@@ -2,9 +2,9 @@ TERMUX_PKG_HOMEPAGE=https://github.com/esnet/iperf
 TERMUX_PKG_DESCRIPTION="TCP, UDP, and SCTP network bandwidth measurement tool"
 TERMUX_PKG_LICENSE="BSD 3-Clause"
 TERMUX_PKG_MAINTAINER="@termux"
-TERMUX_PKG_VERSION="3.18"
-TERMUX_PKG_SRCURL=https://github.com/esnet/iperf/releases/download/$TERMUX_PKG_VERSION/iperf-$TERMUX_PKG_VERSION.tar.gz
-TERMUX_PKG_SHA256=c0618175514331e766522500e20c94bfb293b4424eb27d7207fb427b88d20bab
+TERMUX_PKG_VERSION="3.19"
+TERMUX_PKG_SRCURL=https://github.com/esnet/iperf/archive/refs/tags/${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=da5cff29e4945b2ee05dcf9a0c67768cc000dc1b122935bce3492c4e36f6b5e9
 TERMUX_PKG_UPDATE_VERSION_REGEXP="^\d+\.\d+[^ABRabr]*$"
 TERMUX_PKG_AUTO_UPDATE=true
 TERMUX_PKG_DEPENDS="openssl"