Update cron-update-lxcs.json (#4990)

the cronjob doesn't work with single quotes

Author: Frankmaaan

frontend/public/json/cron-update-lxcs.json

@@ -37,7 +37,7 @@
       "type": "info"
     },
     {
-      "text": "To exclude LXCs from updating, edit the crontab using `crontab -e` and add CTID as shown in the example below:\n\n\n\n`0 0 * * 0 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /bin/bash -c '$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/tools/pve/update-lxcs-cron.sh)' -s 103 111 >>/var/log/update-lxcs-cron.log 2>/dev/null`",
+      "text": "To exclude LXCs from updating, edit the crontab using `crontab -e` and add CTID as shown in the example below:\n\n\n\n`0 0 * * 0 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /bin/bash -c \"$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/tools/pve/update-lxcs-cron.sh)\" -s 103 111 >>/var/log/update-lxcs-cron.log 2>/dev/null`",
       "type": "info"
     }
   ]