1.0.2 authentication issue in pipeline

All, upgraded the plugin version to 1.0.2 and now get authentication issues being reported. Note 1.0.1 works fine.

I am using a token to login to acr to sign the image. Pipeline is a service principal and the step in ado pipeline is using powershell. I have tried setting the env variables for username and password as well as directly using the username and password options - both result in same result.

Code (snippet) -
```
$token_user = "00000000-0000-0000-0000-000000000000"

- pwsh: |
$key_id = $(az keyvault certificate show -n $(dev_cert) --vault-name $(cert_akv) --query 'kid' -o tsv)
$image_details = $(az acr repository show -n $(ingressacr) --image ${{ parameters.target_image_repository }}/${{ parameters.target_image_name }} | ConvertFrom-Json)
$image="$(image_repo)@"+$image_details.digest
$token = $(az acr login --name $(ingressacr) --expose-token --output tsv --query accessToken)
notation sign -u $(token_user) -p $token --signature-format cose --id $key_id --plugin azure-kv --plugin-config self_signed=true $image
```

What I now get is -

```
Error: describe-key command failed: ERROR: ManagedIdentityCredential authentication failed: Service request failed.
Status: 404 (Not Found)

Content:
no azure identity found for request clientID

Headers:
X-Content-Type-Options: REDACTED
Date: Mon, 12 Feb 2024 15:48:05 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 46

See the troubleshooting guide for more information. https://aka.ms/azsdk/net/identity/managedidentitycredential/troubleshoot
```
I assume this is related to the following update in 1.0.2 ?-

Updated Azure.identity to v1.10.4 (https://github.com/Azure/notation-azure-kv/pull/145 )

Putting it back to 1.0.1 of plugin and it works fine again.

Andy