infra: simplify Makefile and uv #7646

Job	Run time
integration-test-adls	1m 13s
integration-test-gcs	1m 47s
integration-test	10m 35s
integration-test-s3	1m 20s
lint-and-unit-test (3.10)	2m 53s
lint-and-unit-test (3.12)	2m 59s
lint-and-unit-test (3.13)	3m 9s
lint-and-unit-test (3.11)	2m 57s
integration-coverage-report	27s
	27m 20s

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