Fix log message when Apple ID token validation fails

Fix the issuer and audience parameters in log message being the wrong way around.
Log the Apple ID that failed token validation at trace, rather than in the error log message.
Resolves #381.

src/AspNet.Security.OAuth.Apple/Internal/DefaultAppleIdTokenValidator.cs

@@ -57,9 +57,13 @@ public override async Task ValidateAsync([NotNull] AppleValidateIdTokenContext c
  {
  _logger.LogError(
  ex,
- "Apple ID token validation failed for issuer {TokenIssuer} and audience {TokenAudience}. ID Token: {IdToken}",
- parameters.ValidAudience,
+ "Apple ID token validation failed for issuer {TokenIssuer} and audience {TokenAudience}.",
  parameters.ValidIssuer,
+ parameters.ValidAudience);
+
+ _logger.LogTrace(
+ ex,
+ "Apple ID token {IdToken} could not be validated.",
  context.IdToken);
 
  throw;