Add archlinux-keyring update and system upgrade steps to netupgrade script

bin/netupgrade

@@ -169,6 +169,10 @@ runCmd() { #$1=host $2=name #3=cmd
 			if [ ${YES} == 1 ]; then
 				YESARG="--noconfirm"
 			fi
+			echo "pacman -Sy ${YESARG} archlinux-keyring" | tee -a "${LOGFILENAME}"
+			if ! ssh root@"${HOST}" pacman -Sy ${YESARG} archlinux-keyring | tee -a "${LOGFILENAME}"; then
+				ERROR=1
+			fi
 			echo "pacman -Syu ${YESARG}" | tee -a "${LOGFILENAME}"
 			if ! ssh root@"${HOST}" pacman -Syu ${YESARG} | tee -a "${LOGFILENAME}"; then
 				ERROR=1