How to replace usage of SecurityTokenUnableToValidateException in code

Beginning with 6.28.0, SecurityTokenUnableToValidateException is no longer getting thrown by Microsoft.IdentityModel/Wilson. In the 7.* major release of Wilson this exception type will be removed completely.

Callers of Wilson should be sure to handle SecurityTokenValidationExceptions individually, or at the very least, handle all exception types of SecurityTokenValidationException.

If you were previously ONLY handling SecurityTokenUnableToValidateException, you should replace that with SecurityTokenValidationException and ideally have exception handling for derrived types (e.g. SecurityTokenExpiredException, SecurityTokenInvalidIssuerException, SecurityTokenNotYetValidException, etc.)