Update smart_ptr from develop #2144

Job	Run time
b2-windows (windows-2019)	24m 11s
b2-windows (windows-2022)	25m 4s
cmake-install-windows (windows-2019)	9m 10s
b2-posix (ubuntu-20.04)	11m 24s
cmake-install-posix (ubuntu-20.04)	4m 13s
cmake-install-windows (windows-2022)	8m 39s
b2-posix (ubuntu-22.04)	11m 49s
cmake-install-posix (ubuntu-22.04)	4m 21s
cmake-test-posix-quick (ubuntu-20.04)	1m 54s
b2-posix (macos-12)	19m 38s
cmake-install-posix (macos-12)	7m 25s
cmake-test-posix-quick (ubuntu-22.04)	2m 33s
cmake-test-windows-quick (windows-2019)	6m 9s
b2-posix (macos-13)	18m 18s
cmake-install-posix (macos-13)	9m 52s
cmake-test-posix-quick (macos-12)	4m 26s
b2-posix (macos-14)	9m 34s
cmake-test-windows-quick (windows-2022)	4m 21s
cmake-install-posix (macos-14)	4m 34s
cmake-test-posix (ubuntu-latest)	34m 10s
cmake-test-posix-quick (macos-13)	5m 8s
cmake-test-posix-quick (macos-14)	2m 56s
	3h 49m 49s

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