enhancement(lint): Fix lint errors for preboot.sh

Co-authored-by: NeonGamerBot-QK <neon@saahild.com>
Signed-off-by: zeon-neon[bot] <136533918+zeon-neon[bot]@users.noreply.github.com>

preboot.sh

@@ -1,9 +1,9 @@
 set -a && source .env && set +a
 node -e "console.log(Date.now())" > boot_stamp
 curl -X POST "https://slack.com/api/chat.postMessage" \
-     -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
-     -H "Content-Type: application/json" \
-     -d '{
+  -H "Authorization: Bearer $SLACK_BOT_TOKEN" \
+  -H "Content-Type: application/json" \
+  -d '{
            "channel": "C07LEEB50KD",
            "text": "Zeon is booting up",
          }'