docs: update README to recommend uv for dependency management #64

Job	Run time
Build wheel on macos-latest	58s
Build wheel on ubuntu-latest	26s
Build wheel on windows-latest	2m 38s
Test wheel on ubuntu-latest with Python 3.12	17s
Test wheel on macos-latest with Python 3.12	13s
Test wheel on windows-latest with Python 3.8	1m 3s
Test wheel on windows-latest with Python 3.12	1m 1s
Test wheel on ubuntu-latest with Python 3.8	20s
Test wheel on macos-latest with Python 3.8	1m 10s
	8m 6s

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