Fix QUIC warnings in preparation for enabling them

gfe-relnote: n/a, compilation-only change
PiperOrigin-RevId: 253893322
Change-Id: I15917a1c5b325922850086277cfad5e3b4da20a4
diff --git a/quic/core/crypto/chacha20_poly1305_encrypter_test.cc b/quic/core/crypto/chacha20_poly1305_encrypter_test.cc
index e04d864..4584d96 100644
--- a/quic/core/crypto/chacha20_poly1305_encrypter_test.cc
+++ b/quic/core/crypto/chacha20_poly1305_encrypter_test.cc
@@ -60,7 +60,7 @@
         "6116"
         "1ae10b594f09e26a7e902ecb",  // "d0600691" truncated
     },
-    {nullptr}};
+    {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr}};
 
 }  // namespace