Repair kvssink unit tests and CI #872

Job	Run time
mac-os-build-clang	9m 40s
mac-os-build-gcc	9m 42s
address-sanitizer	9m 42s
arm64-cross-compilation	8m 49s
ubuntu-gcc	9m 43s
linux-gcc-code-coverage	9m 42s
undefined-behavior-sanitizer	9m 42s
windows-msvc	5m 5s
arm32-cross-compilation	8m 37s
linux-aarch64-cross-compilation	9m 23s
linux-build-gcc-shared	1m 13s
linux-build-gcc-static	8m 48s
	1h 40m 6s

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