feat(backup): add tmpdir to backup exclusion (#4386)

lgsm/modules/command_backup.sh

@@ -126,7 +126,7 @@ fn_backup_compression() {
 		core_exit.sh
 	fi
 
-	tar -czf "${backupdir}/${backupname}.tar.gz" -C "${rootdir}" --exclude "${excludedir}" --exclude "${lockdir}" ./.
+	tar -czf "${backupdir}/${backupname}.tar.gz" -C "${rootdir}" --exclude "${excludedir}" --exclude "${lockdir}" --exclude "${tmpdir}" ./.
 	local exitcode=$?
 	if [ "${exitcode}" != 0 ]; then
 		fn_print_fail_eol