Update dynamic_bitset from develop #2850

Job	Run time
b2-windows (windows-2019)	29m 9s
b2-windows (windows-2022)	30m 21s
b2-posix (ubuntu-20.04)	13m 13s
b2-posix (ubuntu-22.04)	12m 18s
cmake-install-posix (ubuntu-20.04)	5m 20s
b2-posix (ubuntu-24.04)	14m 8s
cmake-test-posix (ubuntu-latest)	26m 14s
cmake-install-posix (ubuntu-22.04)	5m 11s
cmake-install-windows (windows-2019)	9m 1s
b2-posix (macos-13)	39m 28s
cmake-install-posix (ubuntu-24.04)	5m 16s
b2-posix (macos-14)	9m 43s
cmake-install-windows (windows-2022)	8m 38s
cmake-install-posix (macos-13)	9m 41s
b2-posix (macos-15)	11m 40s
cmake-install-posix (macos-14)	5m 46s
cmake-test-posix-quick (ubuntu-20.04)	2m 21s
cmake-install-posix (macos-15)	5m 36s
cmake-test-windows-quick (windows-2019)	6m 5s
cmake-test-posix-quick (ubuntu-22.04)	1m 49s
cmake-test-windows-quick (windows-2022)	6m 45s
cmake-test-posix-quick (ubuntu-24.04)	1m 45s
cmake-test-posix-quick (macos-13)	5m 5s
cmake-test-posix-quick (macos-14)	4m 2s
cmake-test-posix-quick (macos-15)	4m 24s
	4h 32m 59s

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