Update dynamic_bitset from develop #2860

Job	Run time
b2-windows (windows-2019)	28m 8s
b2-windows (windows-2022)	29m 49s
b2-posix (ubuntu-20.04)	12m 46s
cmake-install-posix (ubuntu-20.04)	4m 31s
b2-posix (ubuntu-22.04)	14m 5s
cmake-install-posix (ubuntu-22.04)	4m 49s
b2-posix (ubuntu-24.04)	15m 13s
cmake-install-windows (windows-2019)	8m 33s
b2-posix (macos-13)	29m 32s
cmake-install-posix (ubuntu-24.04)	6m 0s
cmake-install-windows (windows-2022)	9m 47s
b2-posix (macos-14)	11m 26s
cmake-install-posix (macos-13)	10m 57s
b2-posix (macos-15)	10m 57s
cmake-install-posix (macos-14)	5m 28s
cmake-test-posix (ubuntu-latest)	49m 5s
cmake-install-posix (macos-15)	6m 47s
cmake-test-posix-quick (ubuntu-20.04)	1m 57s
cmake-test-posix-quick (ubuntu-22.04)	2m 26s
cmake-test-windows-quick (windows-2019)	5m 17s
cmake-test-posix-quick (ubuntu-24.04)	3m 8s
cmake-test-windows-quick (windows-2022)	5m 36s
cmake-test-posix-quick (macos-13)	5m 10s
cmake-test-posix-quick (macos-14)	4m 39s
cmake-test-posix-quick (macos-15)	4m 43s
	4h 50m 49s

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