Fix decrypt error message.

The message used to also mention the "nonce" prior to the refactor, and there are tests out there that check for exact error messages.

PiperOrigin-RevId: 834998745

quiche/oblivious_http/buffers/oblivious_http_response.cc

diff --git a/quiche/oblivious_http/buffers/oblivious_http_response.cc b/quiche/oblivious_http/buffers/oblivious_http_response.cc
index ed668c3..3755db3 100644
--- a/quiche/oblivious_http/buffers/oblivious_http_response.cc
+++ b/quiche/oblivious_http/buffers/oblivious_http_response.cc
@@ -417,7 +417,7 @@
           reinterpret_cast<const uint8_t*>(encrypted_chunk.data()),
           encrypted_chunk.size(), ad, ad_len)) {
     return SslErrorAsStatus(
-        "Failed to decrypt the response with derived AEAD key.");
+        "Failed to decrypt the response with derived AEAD key and nonce.");
   }
   decrypted.resize(decrypted_len);
   return decrypted;