bootstrap time file changes for AIX #2764

Job	Run time
b2-windows (windows-2019)	29m 25s
cmake-install-windows (windows-2019)	8m 39s
b2-windows (windows-2022)	31m 12s
b2-posix (ubuntu-20.04)	12m 31s
cmake-install-windows (windows-2022)	8m 26s
cmake-install-posix (ubuntu-20.04)	4m 40s
b2-posix (ubuntu-22.04)	12m 26s
cmake-install-posix (ubuntu-22.04)	5m 27s
b2-posix (ubuntu-24.04)	14m 7s
cmake-install-posix (ubuntu-24.04)	4m 53s
cmake-test-posix (ubuntu-latest)	43m 5s
b2-posix (macos-13)	35m 5s
cmake-test-posix-quick (ubuntu-20.04)	2m 43s
cmake-install-posix (macos-13)	9m 26s
b2-posix (macos-14)	11m 18s
cmake-test-posix-quick (ubuntu-22.04)	2m 8s
cmake-install-posix (macos-14)	4m 16s
cmake-test-windows-quick (windows-2019)	6m 9s
b2-posix (macos-15)	10m 36s
cmake-install-posix (macos-15)	6m 30s
cmake-test-windows-quick (windows-2022)	6m 38s
cmake-test-posix-quick (ubuntu-24.04)	1m 52s
cmake-test-posix-quick (macos-13)	7m 5s
cmake-test-posix-quick (macos-14)	4m 3s
cmake-test-posix-quick (macos-15)	3m 57s
	4h 46m 37s

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