Build

Switch all search paths to FastScanCodeScanner and remove make_knn_handler #4414

Job	Run time
build-pull-request / Format	36s
build-pull-request / Linux x86_64 (cmake)	22m 44s
build-release	0s
build-pull-request / Linux x86_64 GPU (cmake)	44m 19s
build-pull-request / Linux x86_64 AVX2 (cmake)	21m 11s
build-pull-request / Linux x86_64 AVX512_SPR (cmake)	39m 31s
build-pull-request / Linux arm64 (conda)	1h 55m 11s
build-pull-request / Linux x86_64 Dynamic Dispatch (cmake)	32m 5s
build-pull-request / Linux x86_64 GPU w/ cuVS (cmake)	1h 48m 42s
build-pull-request / Linux arm64 SVE (cmake)	22m 6s
build-pull-request / Windows x86_64 (conda)	26m 7s
build-pull-request / Linux arm64 Dynamic Dispatch (cmake)	19m 31s
build-pull-request / Linux x86_64 AVX512 (cmake)	39m 30s
build-pull-request / Index serialization backward compatibility / Conda Write -> CMake Read	26m 26s
build-pull-request / Index serialization backward compatibility / CMake Write -> Conda Read	26m 20s
build-pull-request / Linux x86_64 w/ SVS (cmake)	22m 50s
build-pull-request / Linux x86_64 (conda)	26m 31s
	9h 53m 40s

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