Force Handshake packet epoch for CC frame if handshake hasn't been co… #5325

Job	Run time
quiche_ios (x86_64-apple-ios)	1m 2s
quiche_ios (aarch64-apple-ios)	1m 9s
docker	3m 47s
android_ndk_lts (aarch64-linux-android)	1m 9s
http3_test	46s
android_ndk_lts (armv7-linux-androideabi)	1m 6s
android_ndk_lts (x86_64-linux-android)	1m 2s
nginx (1.16.1)	49s
android_ndk_lts (i686-linux-android)	48s
quiche	3m 29s
quiche (boringssl-boring-crate)	3m 32s
quiche (openssl)	5m 52s
quiche_macos (macos-13)	4m 8s
quiche_multiarch (aarch64-unknown-linux-gnu)	2m 40s
quiche_macos (macos-latest)	2m 25s
quiche_multiarch (armv7-unknown-linux-gnueabihf)	2m 59s
quiche_windows (x86_64-pc-windows-msvc)	4m 39s
quiche_multiarch (i686-unknown-linux-gnu)	1m 29s
quiche_windows (i686-pc-windows-msvc)	4m 55s
quiche_windows (x86_64-pc-windows-gnu)	6m 40s
quiche_windows (i686-pc-windows-gnu)	6m 9s
	1h 0m 35s

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