Repair kvssink unit tests and CI #873

Job	Run time
mac-os-build-clang	42m 51s
linux-gcc-code-coverage	28m 37s
mac-os-build-gcc	42m 59s
ubuntu-gcc	27m 45s
undefined-behavior-sanitizer	28m 32s
address-sanitizer	28m 32s
arm32-cross-compilation	8m 21s
arm64-cross-compilation	9m 21s
linux-aarch64-cross-compilation	10m 33s
windows-msvc	34m 4s
linux-build-gcc-shared	1m 54s
linux-build-gcc-static	9m 8s
	4h 32m 37s

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