Setting parameterValueType on Microsoft.Web/connections resource throws an error

**Bicep version**
Bicep CLI version 0.4.1124 (66c84c8ee5)

**Describe the bug**
According to https://docs.microsoft.com/en-us/azure/logic-apps/create-managed-service-identity?tabs=consumption#arm-template-for-managed-connections-and-managed-identities-consumption, I should be able to set parameterValueType to Alternative. So IMO following code should work:

```bicep
param api_connection_sql_name string = 'sql'
param api_connection_sql_name_suffix string = '1'
param azure_sql_database string = 'cost-management'
param azure_subscription string = 'xxxxx-xxxx-xxxx-xxxx-xxxx'
param azure_region string = 'westeurope'

resource ApiConnectionSQL 'Microsoft.Web/connections@2016-06-01' = {
name: '${api_connection_sql_name}-${api_connection_sql_name_suffix}'
location: resourceGroup().location
properties: {
displayName: '${azure_sql_database}-${api_connection_sql_name}-db'
api: {
name: api_connection_sql_name
displayName: 'SQL Server'
iconUri: 'https://connectoricons-prod.azureedge.net/laborbol/patches/1520/${api_connection_sql_name}-mi/1.0.1520.2572/${api_connection_sql_name}/icon.png'
brandColor: '#ba141a'
id: '/subscriptions/${azure_subscription}/providers/Microsoft.Web/locations/${azure_region}/managedApis/${api_connection_sql_name}'
type: 'Microsoft.Web/locations/managedApis'
}
**parameterValueType: 'Alternative'**
customParameterValues: {}
}
}
```

However, Intellisense (in VS Code) shows yellow squiggly and if I try to deploy template, I get following:

```
C:\repos\ApiConnectionSQL.bicep(20,5) : Warning BCP037: The property "parameterValueType" is not allowed on objects of type "ApiConnectionDefinitionProperties". Permissible properties include "changedTime", "createdTime", "nonSecretParameterValues", "parameterValues", "statuses", "testLinks". If this is an inaccuracy in the documentation, please report it to the Bicep Team. [https://aka.ms/bicep-type-issues]

{"status":"Failed","error":{"code":"DeploymentFailed","message":"At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.","details":[{"code":"BadRequest","message":"{\r\n \"error\": {\r\n \"code\": \"InvalidApiConnectionAlternativeParameters\",\r\n \"message\": \"The API connection 'sql-4' has invalid inputs. Parameter value type cannot be set to
'Alternative' because managed identity is not supported in the API definition's connection parameters.\"\r\n }\r\n}"}]}}
```

Warning implies that parameterValueType is not allowed property (contradicting URL from above). Interesting enough error msg implies that parameterValueType should work BUT can't be set to Alternative.

Looking at https://docs.microsoft.com/en-us/azure/templates/microsoft.web/connections?tabs=bicep, parameterValueType is not listed.

Note that if I create this manually (through Logic App), I can use managed identity and all is good. Now I am trying to build this same logic to Bicep template.

So I am a bit confused, where is the problem and how do I fix it?

**To Reproduce**
See above

**Additional context**
Add any other context about the problem here.

Start from the Bicep definition for Microsoft.Web/connections@2016-06-01 and compare its allowed properties with the linked Azure managed-connections documentation and the deployment error. Verify whether parameterValueType is supported for this API definition and whether Alternative is valid for the SQL connector. Done means the type and documentation accurately reflect deployable behavior.

Written by the indexing model from the issue text.