Set CMAKE_FIND_ROOT_PATH #2494

Job	Run time
Cross Compile linux-armv6	1m 53s
Cross Compile linux-armv7	1m 52s
downstream	45m 7s
clang-sanitizers (,thread)	2m 41s
Cross Compile linux-arm64	1m 42s
clang-sanitizers (,address,undefined)	1m 48s
Cross Compile android-armv7	2m 5s
freebsd	9m 8s
linux-compat (manylinux1-x64)	1m 14s
linux-compiler-compat (clang-3)	1m 48s
linux-compat (manylinux1-x86)	1m 11s
linux-debug	1m 31s
linux-compiler-compat (clang-6)	5m 59s
linux-compat (manylinux2014-x64)	1m 21s
linux-compiler-compat (clang-8)	6m 24s
linux-compat (manylinux2014-x86)	1m 22s
linux-no-cpu-extensions	1m 34s
linux-compat (raspbian-bullseye)	6m 33s
linux-compiler-compat (clang-9)	6m 3s
linux-compat (fedora-34-x64)	1m 13s
linux-compiler-compat (clang-10)	1m 44s
linux-compat (opensuse-leap)	1m 33s
linux-compiler-compat (clang-11)	1m 53s
linux-shared-libs	1m 44s
linux-compat (rhel8-x64)	1m 4s
linux-compiler-compat (gcc-4.8)	1m 15s
linux-compat (al2-x64)	1m 43s
linux-compiler-compat (gcc-5)	1m 39s
macos	1m 30s
linux-compiler-compat (gcc-6)	1m 32s
linux-compiler-compat (gcc-7)	1m 32s
macos-debug	1m 52s
linux-compiler-compat (gcc-8)	1m 55s
macos-no-cpu-extensions	1m 22s
linux-compiler-compat (gcc-11)	1m 46s
macos-x64	2m 39s
openbsd	11m 55s
windows	2m 38s
windows-app-verifier	21m 26s
windows-debug	2m 23s
windows-no-cpu-extensions	2m 29s
windows-shared-libs	2m 29s
windows-vc14 (x86)	1m 40s
windows-vc15 (x86)	1m 59s
windows-vc14 (x64)	1m 33s
windows-vc16 (x86)	2m 27s
windows-vc15 (x64)	2m 28s
windows-vc16 (x64)	2m 19s
	3h 4m 58s

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