Update smart_ptr from master #2147

Job	Run time
b2-windows (windows-2019)	25m 35s
cmake-install-posix (ubuntu-20.04)	6m 7s
b2-windows (windows-2022)	26m 27s
cmake-install-posix (ubuntu-22.04)	4m 52s
cmake-install-posix (macos-12)	8m 59s
b2-posix (ubuntu-20.04)	12m 36s
cmake-install-posix (macos-13)	9m 53s
b2-posix (ubuntu-22.04)	13m 7s
cmake-install-windows (windows-2019)	8m 53s
b2-posix (macos-12)	22m 34s
cmake-install-posix (macos-14)	6m 7s
cmake-install-windows (windows-2022)	8m 53s
cmake-test-posix (ubuntu-latest)	34m 9s
b2-posix (macos-13)	19m 41s
b2-posix (macos-14)	9m 46s
cmake-test-posix-quick (ubuntu-20.04)	2m 6s
cmake-test-windows-quick (windows-2019)	6m 24s
cmake-test-posix-quick (ubuntu-22.04)	2m 16s
cmake-test-windows-quick (windows-2022)	5m 54s
cmake-test-posix-quick (macos-12)	6m 35s
cmake-test-posix-quick (macos-13)	5m 0s
cmake-test-posix-quick (macos-14)	5m 2s
	4h 10m 56s

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