build: Use appstreamcli to get the AppData version

Instead of appstream-util, as it is in deep maintenance mode.

See: ximion/appstream#503

check-news.sh

@@ -65,15 +65,15 @@ check_version()
 
 has_verify_latest_version()
 {
-	appstream-util 2>&1 | grep -q get-latest-version
+	appstreamcli --help 2>&1 | grep -q get-latest-version
 	return $?
 }
 
 verify_latest_version()
 {
 	VERSION=$1
 	FILE=$SRC_ROOT/"$2"
-	LATEST_VERSION=`appstream-util get-latest-version "$FILE" | tr -d '\d'`
+	LATEST_VERSION=`appstreamcli get-latest-version "$FILE" | tr -d '\d'`
 	if [ "$LATEST_VERSION" != "$VERSION" ] ; then
 		echo "Expected latest version $VERSION in $FILE, got $LATEST_VERSION"
 		exit 1