CT::poison() convenience overloads #34

Job	Run time
valgrind	1h 29m 9s
PQ/T TLS 1.3	9m 36s
clang-tidy	1h 16m 33s
TLS-Anvil (server)	39m 10s
Cross (cross-riscv64, gcc, ubuntu-24.04)	16m 23s
Cross (cross-s390x, gcc, ubuntu-24.04)	23m 28s
Cross (cross-android-arm64-amalgamation, clang, ubuntu-24.04)	4m 25s
Cross (cross-arm64-amalgamation, gcc, ubuntu-24.04)	12m 1s
Cross (emscripten, emcc, macos-14)	6m 28s
	4h 37m 13s

Provide feedback