Update beast from develop #2846

Job	Run time
b2-windows (windows-2019)	28m 46s
cmake-install-windows (windows-2019)	8m 27s
b2-windows (windows-2022)	29m 4s
cmake-install-windows (windows-2022)	8m 22s
cmake-install-posix (ubuntu-20.04)	4m 19s
cmake-install-posix (ubuntu-22.04)	6m 11s
b2-posix (ubuntu-20.04)	12m 20s
cmake-install-posix (ubuntu-24.04)	5m 26s
cmake-test-posix (ubuntu-latest)	27m 33s
cmake-test-posix-quick (ubuntu-20.04)	2m 49s
cmake-install-posix (macos-13)	11m 36s
cmake-install-posix (macos-14)	4m 53s
cmake-test-posix-quick (ubuntu-22.04)	2m 19s
b2-posix (ubuntu-22.04)	13m 19s
cmake-test-windows-quick (windows-2019)	5m 33s
cmake-test-posix-quick (ubuntu-24.04)	1m 53s
cmake-install-posix (macos-15)	5m 9s
b2-posix (ubuntu-24.04)	15m 9s
cmake-test-posix-quick (macos-13)	5m 36s
cmake-test-windows-quick (windows-2022)	5m 15s
b2-posix (macos-13)	28m 39s
cmake-test-posix-quick (macos-14)	4m 4s
b2-posix (macos-14)	10m 38s
cmake-test-posix-quick (macos-15)	4m 40s
b2-posix (macos-15)	11m 22s
	4h 23m 22s

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