revbump(main/netstandard-targeting-pack-2.1): to match the version in

apt repository

We have netstandard-targeting-pack-2.1 at version 9.0-2, while in
termux-packages it's at 9.0. So make both of them at the same version

The revision was removed from the package in termux/termux-packages#28486.
Somehow it passed codereviews as intermediately, the version was bumped
to 10.0, and was rolled back without setting the revision

Works upon #29408

Author: termux-pacman-bot

packages/netstandard-targeting-pack-2.1/build.sh

@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="A metapackage for NETStandard.Library 2.1 Targeting Pack
 TERMUX_PKG_LICENSE="Public Domain"
 TERMUX_PKG_MAINTAINER="@truboxl"
 TERMUX_PKG_VERSION="9.0"
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_DEPENDS="netstandard-targeting-pack-2.1-9.0 | netstandard-targeting-pack-2.1-8.0"
 TERMUX_PKG_ANTI_BUILD_DEPENDS="netstandard-targeting-pack-2.1-9.0, netstandard-targeting-pack-2.1-8.0"
 TERMUX_PKG_AUTO_UPDATE=false