[Monitor] `az monitor log-analytics query` fails with MemoryError

### **This is autogenerated. Please review and update as needed.**

## Describe the bug

**Command Name**
`az monitor log-analytics query
Extension Name: log-analytics. Version: 0.1.4.`

**Errors:**
```
The command failed with an unexpected error. Here is the traceback:

Traceback (most recent call last):
File "C:\Users\VSSADM~1\AppData\Local\Temp\pip-install-7cl6xofh\knack\knack\cli.py", line 221, in invoke
File "C:\Users\VSSADM~1\AppData\Local\Temp\pip-install-7cl6xofh\knack\knack\output.py", line 149, in out
File "C:\Users\VSSADM~1\AppData\Local\Temp\pip-install-7cl6xofh\knack\knack\output.py", line 42, in format_json
File "C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\lib\json\__init__.py", line 238, in dumps
**kw).encode(obj)
File "C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\lib\json\encoder.py", line 202, in encode
return ''.join(chunks)
MemoryError
```

## To Reproduce:
Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

- _Put any pre-requisite steps here..._
- `az monitor log-analytics query -w {} --analytics-query {}`

## Expected Behavior

## Environment Summary
```
Windows-10-10.0.14393-SP0
Python 3.6.6
Installer: MSI

azure-cli 2.5.1 *

Extensions:
log-analytics 0.1.4

```
## Additional Context