`Microsoft.Network/applicationSecurityGroups` - `location` is not marked as `required`.

In the following definition, the `location` property should be required, as it must be provided on a `PUT`:

https://github.com/Azure/azure-rest-api-specs/blob/b69b3fa5c26c94aa6efe6dadb76f599c204f297b/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/applicationSecurityGroup.json#L353-L371

Initially reported here: https://github.com/Azure/bicep/issues/5071

Open specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/applicationSecurityGroup.json and inspect the application security group definition around lines 353-371. Confirm how required properties are represented in nearby definitions, then update the location property so the specification reflects the PUT requirement and review the resulting diff.

Written by the indexing model from the issue text.