The `az batchai job create` command failed

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**Describe the bug**

When I create a job by executing batchai's test case, I get the following error.
command:
`az batchai job create -c cluster -g MyResourceGroup -w workspace -e experiment -n job -f job_with_file_systems.json`

Show part results：
> "executionInfo": {
"endTime": "2021-06-29T02:16:30+00:00",
"errors": [
{
"category": "UserError",
"code": "AZFMountError",
"details": [
{
"name": "Info",
"value": "Could not mount Azure File Share //clitestyosqm33gqdpek7b75.file.core.windows.net/share at /mnt/batch/tasks/shared/LS_root/jobs/workspace/experiment/job/mounts/afs: "
},
{
"name": "Info",
"value": "Failed to setup runtime for job execution: Job environment preparation failed on 10.0.0.4 with err exit status 1."
}
],
"message": "Unable to mount Azure File"
}
],
"exitCode": -1,
"startTime": "2021-06-29T02:15:45+00:00",
"totalJobNodeHours": 0.0125
},
"executionState": "failed",

**To Reproduce**

> #Prepare resource group and storage
az storage share create -n share
az storage container create -n container
az batchai workspace create -g MyResourceGroup -n workspace
az batchai cluster create -g MyResourceGroup -w workspace -n cluster -f simple_cluster.json -u DemoUser -k key.txt
az batchai experiment create -g MyResourceGroup -w workspace -n experiment
az batchai job create -c cluster -g MyResourceGroup -w workspace -e experiment -n job -f job_with_file_systems.json
az batchai job wait -g MyResourceGroup -w workspace -e experiment -n job
az batchai job show -g MyResourceGroup -w workspace -e experiment -n job

**Expected behavior**

> "executionInfo": {
"endTime": "2021-06-29T02:16:30+00:00",
"errors": [],
"exitCode": 0,
"startTime": "2021-06-29T02:15:45+00:00",
"totalJobNodeHours": 0.0125
},
"executionState": "successed",

**Environment summary**

python
Windows-10-10.0.19041
Python 3.8.8
Installer: pip

azure-cli 2.23.0

**Additional context**

Doc: https://docs.microsoft.com/en-us/cli/azure/batchai/job?view=azure-cli-latest#az_batchai_job_create