changelog: Correct 0.5.0 release date #376

Job	Run time
Build Docker image	11s
x86_64: macOS Monterey (int64, yes, yes, yes, yes)	5m 24s
release	2m 56s
x86_64: macOS Monterey (int128_struct, 2, 4)	3m 11s
SageMath prover	1m 22s
x86_64: macOS Monterey (int128, yes, yes, yes)	5m 3s
x64 (MSVC): Windows (VS 2022, shared)	4m 58s
x64 (MSVC): C++ (public headers)	21s
x86_64: macOS Monterey (int128, yes)	3m 36s
x64 (MSVC): Windows (VS 2022, static)	4m 36s
x86_64: macOS Monterey (int128, yes, yes, yes, yes)	3m 37s
x64 (MSVC): Windows (VS 2022, int128_struct)	4m 57s
x86_64: macOS Monterey (int128, yes, yes, yes, yes, gcc)	3m 30s
x64 (MSVC): Windows (VS 2022, int128_struct with __(u)mulh)	4m 31s
x86_64: macOS Monterey (int128, yes, yes, yes, yes, valgrind --error-exitcode=42, 2)	30m 26s
x86 (MSVC): Windows (VS 2022)	8m 23s
x86_64: macOS Monterey (int128, yes, yes, yes, yes, gcc, valgrind --error-exitcode=42, 2)	25m 45s
x86_64: macOS Monterey (int128, yes, yes, yes, yes, -DVERIFY, no)	3m 45s
x86_64: macOS Monterey (distcheck)	6m 19s
s390x (big-endian): Linux (Debian stable, QEMU)	0s
ARM64: Linux (Debian stable, QEMU)	0s
i686: Linux (Debian stable)	0s
x86_64: Linux (Debian stable)	0s
ARM32: Linux (Debian stable, QEMU)	0s
ppc64le: Linux (Debian stable, QEMU)	0s
Valgrind (memcheck)	0s
C++ -fpermissive (entire project)	0s
C++ (public headers)	0s
${{ matrix.configuration.job_name }}	0s
MSan	0s
UBSan, ASan, LSan	0s
	2h 2m 51s

Provide feedback