az kusto script create should return exit code > 0 when there are errors

**Related command**
```
az kusto script create --cluster-name $clusterName `
--database-name $databaseName `
--name $nameTable `
--resource-group $resourceGroupName `
--script-content $qCreateTable `
--force-update-tag $guid
```

**Is your feature request related to a problem? Please describe.**
Pipeline execution is successful when there are errors in running the command.

**Describe the solution you'd like**
Command should return non-zero code when there are errors.

**Describe alternatives you've considered**
I'd have to redirect standard error to a file and grep the results for "ERROR" then set error code in the script?

**Additional context**
Setting "Fail on Standard Error" doesn't help, because warnings are also sent to standard error.
The goal is for the task to fail on errors, but succeed on Warnings.