Simplify interpolation (IDE0071) - false positive with Enum and FormattableString

We have the below Enum
```
public enum EmployeeType
{
Azure,
Manual,
}
```
Then when using FormattableSqlString
```
await dataContext.Database.ExecuteSqlInterpolatedAsync(
$"UPDATE Employees SET Discriminator = {EmployeeType.Azure.ToString()}, AzureId = {azureId} WHERE EmployeeId = {employee.EmployeeId};");
```
This sets the Discriminator to "Azure". Without the .ToString() call on the enum, it sets it to 0

Running dotnet format removes the .ToString() call on the EmployeeType enum, which changes the behaviour.
I've fixed for now by using nameof(), but this defo seems an issue.

Is this the correct place for this issue?