Wrap EXPECT_DEBUG_DEATH in quic_crypto_client_config_test.cc
Wrap EXPECT_DEBUG_DEATH in quic_crypto_client_config_test.cc

This macro is causing a compilation failure for chromium on iOS.

gfe-relnote: n/a (test-only change)
PiperOrigin-RevId: 268937381
Change-Id: I8b198832b51b0ac25cc91d69334d86d5c3f496f9

google/quiche,google/quiche,google/quiche,google/quiche