apps: more eagerly attempt to write HTTP response stream data in quic… #5435

Job	Run time
quiche	4m 29s
quiche_windows (x86_64-pc-windows-msvc)	4m 17s
quiche (boringssl-boring-crate)	4m 13s
quiche_windows (i686-pc-windows-msvc)	4m 8s
quiche (openssl)	6m 43s
http3_test	48s
quiche_windows (x86_64-pc-windows-gnu)	5m 38s
docker	2m 13s
quiche_windows (i686-pc-windows-gnu)	5m 33s
nginx (1.16.1)	52s
quiche_ios (x86_64-apple-ios)	1m 15s
quiche_multiarch (aarch64-unknown-linux-gnu)	3m 8s
quiche_ios (aarch64-apple-ios)	1m 27s
quiche_multiarch (armv7-unknown-linux-gnueabihf)	3m 27s
android_ndk_lts (aarch64-linux-android)	1m 3s
quiche_multiarch (i686-unknown-linux-gnu)	1m 42s
android_ndk_lts (armv7-linux-androideabi)	1m 0s
quiche_macos (macos-13)	5m 20s
android_ndk_lts (x86_64-linux-android)	1m 7s
quiche_macos (macos-latest)	2m 1s
android_ndk_lts (i686-linux-android)	55s
	1h 1m 19s

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