Include sleep in bash script

Script now waits 2 Minutes before the next request

set_ip.sh

@@ -1,7 +1,10 @@
 #!/bin/bash
-cd /home/server/DNS_Temp
+cd "/usr/bin/app" || exit
+while :
+do
 ipv4=$(curl -k -s https://am.i.mullvad.net/ip)
 ipv6=$(curl -k -s https://ipv6.am.i.mullvad.net/)
-source venv/bin/activate
 python3 ./cloudflare_script.py 4 "$ipv4"
 python3 ./cloudflare_script.py 6 "$ipv6"
+sleep 120
+done