prepare release 1.4.2 #471

Job	Run time
compatible-gcc-9	9m 10s
basic-gcc-dbg-c++20-stdlibc++-asan	31s
aarch64	1m 12s
arenastring-gcc-stdlibc++-default	32s
basic-gcc-dbg-c++20-stdlibc++-tsan	47s
cmake	49s
arenastring-gcc-stdlibc++-half	41s
basic-gcc-dbg-c++14-stdlibc++-asan	39s
arenastring-gcc-stdlibc++-full	31s
coverage	49s
basic-gcc-opt-c++20-stdlibc++-asan	28s
cpp14-coroutine	32s
arenastring-clang-stdlibc++-default	37s
basic-gcc-opt-c++20-stdlibc++-tsan	26s
arenastring-clang-libc++-default	1m 2s
workspace	28s
basic-gcc-opt-c++14-stdlibc++-asan	34s
basic-clang-dbg-c++20-stdlibc++-asan	34s
basic-clang-dbg-c++20-stdlibc++-tsan	32s
basic-clang-dbg-c++20-libc++-asan	36s
basic-clang-dbg-c++20-libc++-tsan	47s
basic-clang-dbg-c++14-stdlibc++-asan	44s
basic-clang-dbg-c++14-libc++-asan	39s
basic-clang-opt-c++20-stdlibc++-asan	1m 2s
basic-clang-opt-c++20-stdlibc++-tsan	32s
basic-clang-opt-c++20-libc++-asan	42s
basic-clang-opt-c++20-libc++-tsan	50s
basic-clang-opt-c++14-stdlibc++-asan	39s
basic-clang-opt-c++14-libc++-asan	43s
	28m 8s

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