Use uv in github actions and recommend uv for dev #2641

Job	Run time
Render docs	1m 15s
build-linux-lint	11s
build-linux-test-component (buildx)	1m 56s
build-linux-test-other	23s
build-linux-test-component (test_compose.py)	19s
build-windows	1m 11s
build-linux-test-component (test_config.py)	26s
build-linux-test-component (test_container.py)	7m 31s
build-linux-test-component (test_context.py)	18s
build-linux-test-component (test_image.py)	42s
build-linux-test-component (test_manifest.py)	17s
build-linux-test-component (test_network.py)	54s
build-linux-test-component (test_node.py)	1m 3s
build-linux-test-component (test_plugin.py)	36s
build-linux-test-component (test_pod.py)	38s
build-linux-test-component (test_service.py)	2m 20s
build-linux-test-component (test_stack.py)	50s
build-linux-test-component (test_swarm.py)	39s
build-linux-test-component (test_system.py)	1m 8s
build-linux-test-component (test_task.py)	27s
build-linux-test-component (test_volume.py)	47s
	23m 51s

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