update CHANGELOG for v0.8.2 release #669

Job	Run time
Linux x64 check results consistency	24s
macos-11	45s
macos-12	32s
Linux x64 cmake unofficial build test	12s
QEMU ARM	1m 58s
QEMU AARCH64	5m 21s
QEMU PPC64LE	1m 35s
QEMU PPC64	1m 31s
QEMU S390X	2m 38s
QEMU MIPS	1m 18s
QEMU M68K	1m 35s
QEMU RISC-V	3m 19s
QEMU ARM, gcc-10	1m 35s
QEMU AARCH64, gcc-10	5m 15s
QEMU PPC64LE, gcc-10	1m 24s
QEMU PPC64, gcc-10	1m 35s
QEMU S390X, gcc-10	2m 33s
QEMU MIPS, gcc-10	1m 18s
QEMU ARM, gcc-9	1m 35s
QEMU PPC64LE, gcc-9	1m 27s
QEMU PPC64, gcc-9	1m 55s
QEMU S390X, gcc-9	2m 35s
QEMU MIPS, gcc-9	1m 42s
QEMU ARM, gcc-8	2m 17s
QEMU PPC64LE, gcc-8	1m 30s
QEMU PPC64, gcc-8	1m 28s
QEMU S390X, gcc-8	1m 58s
Linux x64 misc tests	1m 23s
Ubuntu Node 16.x WebAssembly/asm.js tests	1m 15s
Ubuntu Node 17.x WebAssembly/asm.js tests	1m 17s
Ubuntu Node 18.x WebAssembly/asm.js tests	1m 16s
Windows mingw64	2m 45s
Windows mingw32	2m 33s
VC++ 2022, x64	48s
VC++ 2022, Win32	1m 10s
VC++ 2022, ARM	1m 19s
VC++ 2022, ARM64	1m 12s
VC++ 2019, x64	1m 36s
VC++ 2019, Win32	2m 3s
VC++ 2019, ARM	1m 38s
VC++ 2019, ARM64	1m 29s
CC=cc, ubuntu-latest	1m 46s
CC=gcc, ubuntu-latest	1m 12s
CC=gcc-12, ubuntu-22.04	1m 57s
CC=gcc-11, ubuntu-22.04	1m 36s
CC=gcc-10, ubuntu-22.04	1m 20s
CC=gcc-9, ubuntu-22.04	1m 37s
CC=gcc-8, ubuntu-20.04	1m 41s
CC=gcc-7, ubuntu-20.04	2m 13s
CC=clang, ubuntu-latest	1m 10s
CC=clang-12, ubuntu-22.04	1m 11s
CC=clang-11, ubuntu-22.04	1m 46s
CC=clang-10, ubuntu-20.04	1m 34s
CC=clang-9, ubuntu-20.04	1m 38s
CC=clang-8, ubuntu-20.04	1m 26s
CC=clang-7, ubuntu-20.04	1m 36s
CC=clang-6.0, ubuntu-20.04	1m 43s
	1h 38m 25s

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