Always install uv as a dependency #545

Job	Run time
Test with python 3.6 on windows-latest	1m 57s
Test with python 3.7 on windows-latest	1m 17s
Test with python 3.8 on windows-latest	3m 23s
Test with python 3.12 on windows-latest	3m 24s
Test with python 3.6 on macos-latest	1m 28s
Test with python 3.7 on macos-latest	39s
Test with python 3.8 on macos-latest	3m 25s
Test with python 3.12 on macos-latest	3m 28s
Test with python 2.7 on ubuntu-20.04	31s
Test with python 3.6 on ubuntu-20.04	38s
Test with python 3.7 on ubuntu-latest	34s
Test with python 3.8 on ubuntu-latest	3m 20s
Test with python 3.9 on ubuntu-latest	3m 30s
Test with python 3.10 on ubuntu-latest	3m 21s
Test with python 3.11 on ubuntu-latest	3m 19s
Test with python 3.12 on ubuntu-latest	3m 32s
	37m 46s

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