Inaccurate --filter example for az ad app permission list-grants

The `--filter` example of

https://learn.microsoft.com/en-us/cli/azure/ad/app/permission?view=azure-cli-latest#az-ad-app-permission-list-grants

returns `Invalid filter clause`

The example for list-grants shows

```
OData filter, e.g. --filter "displayname eq 'test' and servicePrincipalType eq 'Application'".
```

but when I try it myself

```
$ az ad app permission list-grants --filter "displayname eq 'test' and servicePrincipalType eq 'Application'"
Invalid filter clause
``

```
$ az version
{
"azure-cli": "2.44.1",
"azure-cli-core": "2.44.1",
"azure-cli-telemetry": "1.0.8",
"extensions": {
"account": "0.2.5",
"desktopvirtualization": "0.2.0",
"dns-resolver": "0.2.0",
"quota": "0.1.0",
"ssh": "1.1.3"
}
}
```

---
#### Document Details

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* ID: 6a5b5348-f67e-ef14-0529-4c80fddd4bc6
* Version Independent ID: bfd7e6b1-1fba-3d25-8ee3-5105bcf4157d
* Content: [az ad app permission](https://learn.microsoft.com/en-us/cli/azure/ad/app/permission?view=azure-cli-latest)
* Content Source: [latest/docs-ref-autogen/ad/app/permission.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/main/latest/docs-ref-autogen/ad/app/permission.yml)
* Service: **active-directory**
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**