Use uv #1394

Job	Run time
verify-bcr-patches	4s
test / matrix-prep-os	1s
test / matrix-prep-bazelversion	2s
test / test (ubuntu-latest, 7.1.0, ., false)	2m 10s
test / test (ubuntu-latest, 7.1.0, e2e/smoke, true)	4s
test / test (ubuntu-latest, 7.1.0, e2e/smoke, false)	1m 44s
test / test (ubuntu-latest, 7.1.0, e2e/repository-rule-deps, true)	5s
test / test (ubuntu-latest, 7.1.0, e2e/system-interpreter, true)	5s
test / test (ubuntu-latest, 7.1.0, examples/uv_pip_compile, true)	4s
test / test (ubuntu-latest, 6.4.0, e2e/smoke, true)	7s
test / test (ubuntu-latest, 6.4.0, e2e/smoke, false)	1m 2s
test / test (ubuntu-latest, 6.4.0, e2e/repository-rule-deps, true)	10s
test / test (ubuntu-latest, 6.4.0, e2e/system-interpreter, true)	6s
	5m 44s

Provide feedback