Use 1-RTT instead of 0-RTT write key to send H3 SETTINGs in quic_spdy_stream_test.
gfe-relnote: n/a (test only change)
PiperOrigin-RevId: 301652847
Change-Id: Idcf152283975f37f672be1d4ab7522fa5bf4fece
QUICHE (QUIC, Http/2, Etc) is Google‘s implementation of QUIC and related protocols. It powers Chromium as well as Google’s QUIC servers and some other projects.