Fix contact name encoding (backport #2978) #1232

Job	Run time
Emscripten	2m 41s
FreeBSD	5m 25s
macOS-deps=enabled	1m 51s
MSYS2-UCRT64-deps=enabled	5m 28s
macOS-deps=disabled	48s
MSYS2-CLANG64-deps=enabled	3m 58s
MSYS2-UCRT64-deps=disabled	3m 44s
MSYS2-CLANG64-deps=disabled	2m 41s
Linux-GCC7-deps=forcefallback	1m 48s
Linux-GCC7-deps=default	1m 21s
Linux-GCC13-deps=forcefallback	2m 22s
Linux-Clang7-deps=forcefallback	1m 52s
Linux-GCC13-deps=default	1m 58s
Linux-Clang7-deps=default	1m 15s
Linux-Clang17-deps=forcefallback	3m 14s
Linux-Clang17-deps=default	2m 8s
MSVC-forcefallback-x64	4m 34s
MSVC-forcefallback-x86	4m 43s
clang-cl-forcefallback	6m 30s
MSVC-default-x64	3m 3s
clang-cl-default	2m 53s
MSVC-default-x86	3m 45s
	1h 8m 2s

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