update README.md #307

Job	Run time
Build and Test (3.10, ubuntu-latest)	9m 38s
Build and Test (3.10, macos-13)	15m 26s
Build and Test (3.10, macos-14)	7m 52s
Build and Test (3.10, windows-latest)	11m 37s
Build and Test (3.11, ubuntu-latest)	9m 19s
Build and Test (3.11, macos-13)	11m 51s
Build and Test (3.11, macos-14)	7m 53s
Build and Test (3.11, windows-latest)	10m 14s
Build and Test (3.12, ubuntu-latest)	9m 17s
Build and Test (3.12, macos-13)	13m 16s
Build and Test (3.12, macos-14)	7m 3s
Build and Test (3.12, windows-latest)	9m 34s
	2h 3m 0s

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