Update beast from develop #2761

Job	Run time
b2-windows (windows-2019)	29m 4s
b2-windows (windows-2022)	29m 51s
b2-posix (ubuntu-20.04)	13m 7s
cmake-install-posix (ubuntu-20.04)	4m 23s
b2-posix (ubuntu-22.04)	12m 52s
cmake-install-posix (ubuntu-22.04)	4m 34s
cmake-install-windows (windows-2019)	8m 30s
b2-posix (ubuntu-24.04)	14m 4s
cmake-test-posix (ubuntu-latest)	39m 33s
cmake-install-windows (windows-2022)	8m 36s
cmake-install-posix (ubuntu-24.04)	5m 8s
b2-posix (macos-13)	30m 27s
cmake-install-posix (macos-13)	8m 16s
b2-posix (macos-14)	9m 29s
cmake-test-posix-quick (ubuntu-20.04)	2m 7s
b2-posix (macos-15)	12m 15s
cmake-test-posix-quick (ubuntu-22.04)	1m 49s
cmake-install-posix (macos-14)	5m 8s
cmake-install-posix (macos-15)	4m 58s
cmake-test-windows-quick (windows-2019)	5m 30s
cmake-test-posix-quick (ubuntu-24.04)	1m 47s
cmake-test-windows-quick (windows-2022)	5m 31s
cmake-test-posix-quick (macos-13)	4m 48s
cmake-test-posix-quick (macos-14)	4m 6s
cmake-test-posix-quick (macos-15)	4m 12s
	4h 30m 5s

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