Update iterator from develop #2573

Job	Run time
b2-windows (windows-2019)	29m 9s
b2-posix (ubuntu-20.04)	13m 32s
b2-windows (windows-2022)	29m 22s
b2-posix (ubuntu-22.04)	13m 17s
cmake-install-posix (ubuntu-20.04)	5m 29s
cmake-install-posix (ubuntu-22.04)	4m 40s
b2-posix (ubuntu-24.04)	14m 16s
cmake-install-windows (windows-2019)	8m 33s
cmake-test-posix (ubuntu-latest)	36m 28s
cmake-install-posix (ubuntu-24.04)	5m 22s
cmake-install-windows (windows-2022)	8m 16s
b2-posix (macos-13)	26m 32s
cmake-install-posix (macos-13)	7m 24s
b2-posix (macos-14)	9m 36s
cmake-test-posix-quick (ubuntu-20.04)	1m 44s
b2-posix (macos-15)	10m 17s
cmake-install-posix (macos-14)	4m 11s
cmake-test-posix-quick (ubuntu-22.04)	1m 47s
cmake-test-windows-quick (windows-2019)	5m 33s
cmake-install-posix (macos-15)	5m 20s
cmake-test-posix-quick (ubuntu-24.04)	1m 50s
cmake-test-windows-quick (windows-2022)	5m 23s
cmake-test-posix-quick (macos-13)	6m 22s
cmake-test-posix-quick (macos-14)	3m 42s
cmake-test-posix-quick (macos-15)	4m 14s
	4h 22m 19s

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