az storage blob upload can overwrite a blob without needing the --overwrite parameter in az cli version 2.33.1 , however in version 2.34.1 it requires the overwrite parameter.

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

## Describe the bug

**Command Name**
`az storage blob upload`

**Detailed command**

`az storage blob upload --account-name --container-name '$web' --file --auth-mode login`
**Errors:**
```
The specified blob already exists.
RequestId:xxxx-xxxxx-xxxx
Time:2022-03-24T04:01:57.5064729Z
ErrorCode:BlobAlreadyExists
If you want to overwrite the existing one, please add --overwrite in your command.
```

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

- Install the latest azure cli on your workstation - As of raising this bug this is v2.34.1
- Attempt to overwrite an existing blob in a container
- az storage blob upload --account-name --container-name '$web' --file --auth-mode login
- You will get the error `The specified blob already exists`
- Now install the version v2.33.1 of azure cli and try the same steps as above
- The file can be re-uploaded/overwritten again and again without any error.
- So in summary:
- If you have azure cli v2.33.1 - `az storage blob upload` allows the upload of the same file to the same location allowing it to be overwritten.
- if you have azure cli v2.34.1 - `az storage blob upload` doesn't allow the upload of the same file to the same location, instead throws an error `Blob already exists` and requires the `experimental` parameter --overwrite to be supplied.

## Expected Behavior
- I don't expect this breaking change to be introduced. Azure CLI tasks ( for azure pipelines ) is using azure CLI v2.33.1 and the file upload works smoothly, but I am afraid as soon as the Azure CLI task gets upgraded to v2.34.1 my pipeline code will break.

## Environment Summary
```
Windows-10-10.0.19041-SP0
Python 3.8.9
Installer: MSI

azure-cli 2.34.1

Extensions:
azure-devops 0.22.0
desktopvirtualization 0.1.1
interactive 0.4.5
log-analytics 0.2.2
next 0.1.2
rdbms-connect 1.0.1

Dependencies:
msal 1.16.0
azure-mgmt-resource 20.0.0
```
## Additional Context